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Having a sharp point; armed with prickles; prickly; aculeate.

Having small prickles or sharp points. Gray.

Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; -- opposed to Ant: dull or Ant: stupid; as, an acute observer; acute remarks, or reasoning.

Having acute angles; as, an acute-angled triangle, a triangle with every one of its angles less than a right angle.

Having sharp-pointed leaves.

Having acute lobes, as some leaves.

Of a flower, having its parts inserted spirally on the receptacle.

Made of adamant, or having the qualities of adamant; incapable of being broken, dissolved, or penetrated; as, adamantine bonds or chains.

Having lost the power of development, and become rotten, as eggs; putrid. Hence: Unfruitful or confused, as brains; muddled. Dryden.

An animal having feet that are not apparent.

Having coalescent or clustered filaments; -- said of stamens; as, adelphous stamens. Usually in composition; as, monadelphous. Gray.

Having glands on the leaves.

Having the form or appearance of adipocere; as, an adipoceriform tumor.

Joining; having the quality of joining; forming an adjunct.

ment and disposal, under legal authority, of the estate of an intestate, or of a testator having no competent executor.

Having qualities to excite wonder united with approbation; deserving the highest praise; most excellent; -- used of persons or things. "An admirable machine." "Admirable fortitude." Macaulay.

The department or officers having authority over naval affairs generally.

Having arrived at maturity, or to full size and strength; matured; as, an adult person or plant; an adult ape; an adult age.

Having much heat in the constitution and little serum in the blood. [Obs.] Hence: Atrabilious; sallow; gloomy.

) In front; before. (b) Beforehand; before an equivalent is received. (c) In the state of having advanced money on account; as, A is advance to B a thousand dollars or pounds.