Acetabulum :: Acetabulum (n.) A sucker of the sepia or cuttlefish and related animals.
Acetabulum :: Acetabulum (n.) The large posterior sucker of the leeches.
Acetabulum :: Acetabulum (n.) One of the lobes of the placenta in ruminating animals.
Acicula :: Acicula (n.) One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal..
Acicular :: Acicular (a.) Needle-shaped; slender like a needle or bristle, as some leaves or crystals; also, having sharp points like needless..
Aciculated :: Aciculated (a.) Marked with fine irregular streaks as if scratched by a needle.
Acidulate :: Acidulate (v. t.) To make sour or acid in a moderate degree; to sour somewhat.
Acidulent :: Acidulent (a.) Having an acid quality; sour; acidulous.
Acidulous :: Acidulous (a.) Slightly sour; sub-acid; sourish; as, an acidulous tincture..
Actinula :: Actinula (n. pl.) A kind of embryo of certain hydroids (Tubularia), having a stellate form..
Aculeate :: Aculeate (a.) Having a sting; covered with prickles; sharp like a prickle.
Aculeate :: Aculeate (a.) Having prickles, or sharp points; beset with prickles..
Aculeate :: Aculeate (a.) Severe or stinging; incisive.
Aculeated :: Aculeated (a.) Having a sharp point; armed with prickles; prickly; aculeate.
Aculeolate :: Aculeolate (a.) Having small prickles or sharp points.
Aculeus :: Aculeus (n.) A prickle growing on the bark, as in some brambles and roses..
Adambulacral :: Adambulacral (a.) Next to the ambulacra; as, the adambulacral ossicles of the starfish..