- The definition of base is something that forms a foundation.
An example of something that is base is the first coat of paint.
- Base is defined as the lowest part of something or the part which supports the rest.
- An example of a base is the bottom supporting part of a basketball hoop.
- An example of a base is the reason someone may give for being in favor of a referendum.
- An example of a base is primer that is put on the wall before painting.
- A base is one of the squares to which a baseball player must run after the player, or a teammate, hits the ball.
An example of a base is home plate.
- To base is defined as to make a determination, to create groundwork or to place something somewhere.
- An example of base is forming an opinion on your background knowledge.
- An example of base is developing a plan upon your financial ability to make it work.
- An example of base is to locate a company in Washington D.C.
- the thing or part on which something rests; lowest part or bottom; foundation
- the fundamental or main part, as of a plan, organization, system, theory, etc.
- the principal or essential ingredient, or the one serving as a vehicle: paint with an oil base
- anything from which a start is made; basis
- the point of attachment of a part of the body: the base of the thumb
- a center of operations or source of supply; headquarters, as of a military operation or exploring expedition
- the bottommost layer or coat, as of paint
- a makeup cream to give a desired color to the skin, esp. in the theater
- Archit. the lower part, as of a column, pier, or wall, regarded as a separate unit
- Baseball any of the four objects at the four corners of the infield that must be reached safely one after the other to score a run: three (first base, second base, and third base) are set above the ground while the fourth (home plate) is set flush with the ground
- any compound that can react with an acid to form a salt, the hydroxyl of the base being replaced by a negative ion: in modern theory, any substance that produces a negative ion and donates electrons to an acid to form covalent bonds: in water solution a base tastes bitter, turns red litmus paper blue, and, in dissociation theory, produces free hydroxyl ions
- any of the two purines (adenine or guanine) or three pyrimidines (thymine, cytosine, or uracil) that are the key building blocks of nucleic acid
- Dyeing a substance used for fixing colors
- Electronics in some transistors, the region or layer of semiconductor material, acting as an electrode, that separates the emitter from the collector and receives an electric current of electrons or holes
- Geom. the line or plane upon which a figure is thought of as resting: the base of a triangle
- Heraldry the lower portion of a shield
- Linguis. any morpheme to which prefixes, suffixes, etc. are or can be added; stem or root
- a whole number, esp. 10 or 2, made the fundamental number, and raised to various powers to produce the major counting units, of a number system; radix
- any number raised to a power by an exponent
- a starting or reference figure or sum upon which certain calculations are made
Origin: Middle English ; from Old French bas ; from Classical Latin basis, basis
- having or showing little or no honor, courage, or decency; mean; ignoble; contemptible: a base coward, base ingratitude
- of a menial or degrading kind: base servitude
- inferior in quality
- Now Rare not classical or cultivated: base Latin
- of comparatively low worth: iron is a base metal, gold a precious one
- debased or counterfeit: base coin
- having the low feudal status of villein
- held by one having this status: base tenure
- Archaic low in height; short
- Archaic of servile, humble, or illegitimate birth
- Obsolete low or inferior in place or position
- Obsolete bass
Origin: Middle English and amp; Old French bas ; from Vulgar Latin bassus, thick, stumpy, low
Used by arrangement with John Wiley & Sons, Inc.
- The lowest or bottom part: the base of a cliff; the base of a lamp.
- Biology a. The part of a plant or animal organ that is nearest to its point of attachment.b. The point of attachment of such an organ.
- a. A supporting part or layer; a foundation: a skyscraper built on a base of solid rock.b. A basic or underlying element; infrastructure: the nation's industrial base.
- The fundamental principle or underlying concept of a system or theory; a basis.
- A fundamental ingredient; a chief constituent: a paint with an oil base.
- The fact, observation, or premise from which a reasoning process is begun.
- a. Games A starting point, safety area, or goal.b. Baseball Any one of the four corners of an infield, marked by a bag or plate, that must be touched by a runner before a run can be scored.
- A center of organization, supply, or activity; a headquarters.
- a. A fortified center of operations.b. A supply center for a large force of military personnel.
- A facial cosmetic used to even out the complexion or provide a surface for other makeup; a foundation.
- Architecture The lowest part of a structure, such as a wall, considered as a separate unit: the base of a column.
- Heraldry The lower part of a shield.
- Linguistics A morpheme or morphemes regarded as a form to which affixes or other bases may be added.
- Mathematics a. The side or face of a geometric figure to which an altitude is or is thought to be drawn.b. The number that is raised to various powers to generate the principal counting units of a number system. The base of the decimal system, for example, is 10.c. The number raised to the logarithm of a designated number in order to produce that designated number; the number at which a chosen logarithmic scale has the value 1.
- A line used as a reference for measurement or computations.
- Chemistry a. Any of a class of compounds whose aqueous solutions are characterized by a bitter taste, a slippery feel, the ability to turn litmus blue, and the ability to react with acids to form salts.b. A substance that yields hydroxyl ions when dissolved in water.c. A substance that can act as a proton acceptor.d. A substance that can donate a pair of electrons to form a covalent bond.
- Electronics a. The region in a transistor between the emitter and the collector.b. The electrode attached to this region.
- One of the nitrogen-containing purines (adenine and guanine) or pyrimidines (cytosine, thymine, and uracil) that occurs attached to the sugar component of DNA or RNA.
- Forming or serving as a base: a base layer of soil.
- Situated at or near the base or bottom: a base camp for the mountain climbers.
- Chemistry Of, relating to, or containing a base.
- To form or provide a base for: based the new company in Portland.
- To find a basis for; establish: based her conclusions on the report; a film based on a best-selling novel.
- To assign to a base; station: troops based in the Middle East.
Origin: Middle English, from Old French, from Latin basis, from Greek; see gwā- in Indo-European roots.
adjective bas·er, bas·est
- a. Having or showing a contemptible, mean-spirited, or selfish lack of human decency. See Synonyms at mean2.b. Devoid of high values or ethics: a base, degrading way of life.c. Inferior in value or quality.
- Containing inferior substances: a base metal.
- Archaic Of low birth, rank, or position.
- Obsolete Short in stature.
Origin: Middle English bas, low, from Old French, from Medieval Latin bassus.
- baseˈly adverb
- baseˈness noun
base - Computer Definition
(1) A starting or reference point.
(2) In a bipolar transistor, the elements that act as a switch. In NMOS and PMOS transistors, which make up CMOS circuits, the base is called the "gate." See transistor.
(3) A multiplier in a numbering system. In a decimal system, each digit position is worth 10x the position to its right. In binary, each digit position is worth 2x the position to its right.
Computer Desktop Encyclopedia
THIS DEFINITION IS FOR PERSONAL USE ONLY
All other reproduction is strictly prohibited without permission from the publisher.
© 1981-2014 The Computer Language Company Inc. All rights reserved.
base - Cultural Definition
Any of a number of bitter-tasting, caustic materials. Technically, a material that produces negative ions in solution. A base is the opposite of an acid and has a pH of 7 to 14. A given amount of a base added to the same amount of an acid neutralizes the acid; water and a salt are produced. Alkalis are bases; ammonia is a common base.
base - Medical Definition
- The part of an organ nearest its point of attachment.
- A fundamental ingredient; a chief constituent of a mixture.
- Any of a large class of compounds, including the hydroxides and oxides of metals, having a bitter taste, a slippery solution, the capacity to turn litmus blue, and to react with acids to form salts.
- A molecular or ionic substance capable of combining with a proton to form a new substance. Also called Brønsted base.
- A nitrogen-containing organic compound that combines in such a manner.
- A substance that provides a pair of electrons for a covalent bond with an acid.
base - Phrases/IdiomsThe American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- Baseball not touching the base
- Slang taking a position or attitude that is unsound or in error
touch all the basesâ
touch baseor touch basesâ
Used by arrangement with John Wiley & Sons, Inc.
base - Science Definition
- Chemistry a. Any of a class of compounds that form hydroxyl ions (OH) when dissolved in water, and whose aqueous solutions react with acids to form salts. Bases turn red litmus paper blue and have a pH greater than 7. Their aqueous solutions have a bitter taste. Compare acid.b. See nitrogen base.
- Mathematics a. The side or face of a geometric figure to which an altitude is or is thought to be drawn. The base can be, but is not always, the bottom part of the figure.b. The number that is raised to various powers to generate the principal counting units of a number system. The base of the decimal system, for example, is 10.c. The number that is raised to a particular power in a given mathematical expression. In the expression an, a is the base.
Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.