Allantoid :: Allantoid (n.) A membranous appendage of the embryos of mammals, birds, and reptiles, -- in mammals serving to connect the fetus with the parent; the urinary vesicle..
Allantoidal :: Allantoidal (a.) Of or pertaining to the allantois.
Allantoidea :: Allantoidea (n. pl.) The division of Vertebrata in which the embryo develops an allantois. It includes reptiles, birds, and mammals..
Allantoin :: Allantoin (n.) A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid..
Ammonitoidea :: Ammonitoidea (n. pl.) An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite.
Anallantoic :: Anallantoic (a.) Without, or not developing, an allantois..
Anallantoidea :: Anallantoidea (n. pl.) The division of Vertebrata in which no allantois is developed. It includes amphibians, fishes, and lower forms..
Blastoidea :: Blastoidea (n. pl.) One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.
Cestoid :: Cestoid (a.) Of or pertaining to the Cestoidea.
Cestoidea :: Cestoidea (n. pl.) A class of parasitic worms (Platelminthes) of which the tapeworms are the most common examples. The body is flattened, and usually but not always long, and composed of numerous joints or segments, each of which may contain a complete set of male and female reproductive organs. They have neither mouth nor intestine. See Tapeworm..
Conservatoire :: Conservatoire (n.) A public place of instruction in any special branch, esp. music and the arts. [See Conservatory, 3]..
Cottoid :: Cottoid (a.) Like a fish of the genus Cottus.
Cottoid :: Cottoid (n.) A fish belonging to, or resembling, the genus Cottus. See Sculpin..