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Having the fruit covered with spines.

A group of intestinal worms, having the proboscis armed with recurved spines.

Having a spiny head, as one of the Acanthocephala.

Having spinous petioles.

A group of teleostean fishes having spiny fins. See Acanthopterygii.

Belonging to the order of fishes having spinose fins, as the perch. -- n.

An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.

Having fins in which the rays are hard and spinelike; spiny- finned.

Having no capsule.

Having no carpels.

Having no stem or caulis, or only a very short one concealed in the ground. Gray.

, favor, or assent; eager expression of approval; loud applause. On such a day, a holiday having been voted by acclamation, an ordinary walk would not satisfy the children. Southey.

er can they prove the things whereof they now accuse me. Acts xxiv. 13. We are accused of having persuaded Austria and Sardinia to lay down their arms. Macaulay.

Having the style spring from the base, instead of from the apex, as is the case in certain ovaries.

Having the nature of chaff; chaffy.

Having a sour taste; sour; acid. "An acetous spirit." Boyle. "A liquid of an acetous kind." Bp. Lowth.

Naked; having no floral envelope, neither calyx nor corolla.

pt.), a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges from the compound lens undecom…

Needle-shaped; slender like a needle or bristle, as some leaves or crystals; also, having sharp points like needless. A*cic"u*lar*ly, adv.

Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour-tempered. He was stern and his face as acid as ever. A. Trollope.