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Metagastric :: Metagastric (a.) Of or pertaining to the two posterior gastric lobes of the carapace of crabs.

Malacobdella :: Malacobdella (n.) A genus of nemertean worms, parasitic in the gill cavity of clams and other bivalves. They have a large posterior sucker, like that of a leech. See Illust. of Bdellomorpha..

Coleoptera :: Coleoptera (n. pl.) An order of insects having the anterior pair of wings (elytra) hard and horny, and serving as coverings for the posterior pair, which are membranous, and folded transversely under the others when not in use. The mouth parts form two pairs of jaws (mandibles and maxillae) adapted for chewing. Most of the Coleoptera are known as beetles and weevils..

Telotrochous :: Telotrochous (a.) Having both a preoral and a posterior band of cilla; -- applied to the larvae of certain annelids.

Postticous :: Postticous (a.) Posterior.

Sivatherium :: Sivatherium (n.) A genus of very large extinct ruminants found in the Tertiary formation of India. The snout was prolonged in the form of a proboscis. The male had four horns, the posterior pair being large and branched. It was allied to the antelopes, but very much larger than any exsisting species..

Lacinia :: Lacinia (n.) The posterior, inner process of the stipes on the maxillae of insects..

Underwing :: Underwing (n.) One of the posterior wings of an insect.

Opisthocoelous :: Opisthocoelous (a.) Concave behind; -- applied especially to vertebrae in which the anterior end of the centrum is convex and the posterior concave.

Posterior :: Posterior (a.) On the side next the axis of inflorescence; -- said of an axillary flower.

Metapterygium :: Metapterygium (n.) The posterior of the three principal basal cartilages in the fins of fishes.

Uropod :: Uropod (n.) Any one of the abdominal appendages of a crustacean, especially one of the posterior ones, which are often larger than the rest, and different in structure, and are used chiefly in locomotion. See Illust. of Crustacea, and Stomapoda..

Postcommissure :: Postcommissure (n.) A transverse commisure in the posterior part of the roof of the third ventricle of the brain; the posterior cerebral commisure.

Postzygapophysis :: Postzygapophysis (n.) A posterior zygapophysis.

Metanephros :: Metanephros (n.) The most posterior of the three pairs of embryonic renal organs developed in many vertebrates.

Acetabulum :: Acetabulum (n.) The large posterior sucker of the leeches.

Posteriority :: Posteriority (n.) The state of being later or subsequent; as, posteriority of time, or of an event; -- opposed to priority..

Uvea :: Uvea (n.) The posterior pigmented layer of the iris; -- sometimes applied to the whole iris together with the choroid coat.

Turnus :: Turnus (n.) A common, large, handsome, American swallowtail butterfly, now regarded as one of the forms of Papilio, / Jasoniades, glaucus. The wings are yellow, margined and barred with black, and with an orange-red spot near the posterior angle of the hind wings. Called also tiger swallowtail. See Illust. under Swallowtail..

Metencephalon :: Metencephalon (n.) The posterior part of the brain, including the medulla; the afterbrain. Sometimes abbreviated to meten..

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