onto

onto-

Use onto in a sentence

preposition

Onto is defined as to or upon.

An example of onto is someone jumping from the top of one rock to another.

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MLA Style

"Onto." YourDictionary. LoveToKnow. www.yourdictionary.com/Onto.

APA Style

Onto. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/Onto

onto

to and upon; to a position on
Slang aware of or familiar with; esp., aware of the real nature or meaning of: they're onto our schemes

onto-

being, existence: ontology
organism: ontogeny

Also, before a vowel, ont-

Origin of onto-

from Classical Greek ?n (gen. ontos), present participle of einai, to be from Indo-European base an unverified form es- from source is

Link/Cite

Link to this page

Cite this page

MLA Style

"Onto." YourDictionary. LoveToKnow. www.yourdictionary.com/Onto.

APA Style

Onto. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/Onto

onto

preposition

On top of; to a position on; upon: The dog jumped onto the chair.
Informal Fully aware of; informed about: The police are onto the robbers' plans.

adjective

Mathematics

Of, relating to, or being a function such that every element of the codomain is the value that corresponds to an element in the domain.

onto-

or ont-

prefix

Existence; being: ontology.
Organism: ontogeny.

Origin of onto-

Late Greek from Greek ōn ont- present participle of einai to be ; see es- in Indo-European roots.

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Link/Cite

Link to this page

Cite this page

MLA Style

"Onto." YourDictionary. LoveToKnow. www.yourdictionary.com/Onto.

APA Style

Onto. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/Onto

Preposition

Upon; on top of.
My cat just jumped onto the keyboard.
(informal) Aware of.
(The thought-police were onto my plans of World domination.)
(mathematics) Being an onto function with a codomain of (see below).
The exponential function maps the set of real numbers onto the set of positive real numbers.

Adjective

(not comparable)

(mathematics, of a function) Assuming each of the values in its codomain; having its range equal to its codomain.
Considered as a function on the real numbers, the exponential function is not onto.

English Wiktionary. Available under CC-BY-SA license.