Basal definition

bāsəl, -zəl
Of, relating to, located at, or forming a base.
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Of, at, or forming the base.
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Being the base or basis; basic; fundamental.
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Of primary importance; basic.
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(botany) Located at or near the base of a plant stem, or at the base of any other plant part.

Basal placentation.

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(bot.) Growing from the base of a stem.
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Relating to, or forming, the base, or point of origin.
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(chiefly systematics) In a phylogenetic tree, being a group, or member of a group, which diverged earlier.

Hittite is a basal Indo-European language.

A magnolia is a basal angiosperm.

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(anatomy) Any basal structure or part.
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Other Word Forms

Noun

Singular:
basal
Plural:
basals

Origin of basal

  • base +‎ -al

    From Wiktionary

Basal Sentence Examples

  • The basal cell has less chlorophyll than the others, and is expanded and fixed firmly to the rock on which the plant grows by the basal surface, rh, thus forming a rudimentary rhizoid.

  • In the region of the neck lateral strands pass through the transverse canal of the cervical vertebrae; but from the thoracic region onwards, where the cardiac branch to the heart is given off, each strand is double and the basal ganglia are successively connected with the next by a branch which runs ventrally over the capitulum of the rib, and by another which passes directly through the foramen or space formed between capitulum and tuberculum.

  • The proboscis-gut occurs as an outgrowth from the anterior dorsal wall of the collar-gut, and extends forward into the basal (posterior) region of the proboscis, through the neck into the proboscis-coelom, ending blindly in front.

  • Rarely the inflorescence consists of very few flowers; thus Lygeum Spartum, the most anomalous of European grasses, has but two or three large uniflorous spikelets, which are fused together at the base, and have no basal glumes, but are enveloped in a large, hooded, spathe-like bract.

  • The bract is not, however, the one from which the axis terminating in the flower arises, but is a bract produced upon it, and gives origin in its axil to a new axis, the basal portion FIG.

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Words near basal in the Dictionary