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Epimere :: Epimere (n.) One of the segments of the transverse axis, or the so called homonymous parts; as, for example, one of the several segments of the extremities in vertebrates, or one of the similar segments in plants, such as the segments of a segmented leaf..

Solifugae :: Solifugae (n. pl.) A division of arachnids having large, powerful fangs and a segmented abdomen; -- called also Solpugidea, and Solpugides..

Manubrium :: Manubrium (n.) A handlelike process or part; esp., the anterior segment of the sternum, or presternum, and the handlelike process of the malleus..

Segmental :: Segmental (a.) Of or pertaining to the segmental organs.

Chilognatha :: Chilognatha (n. pl.) One of the two principal orders of myriapods. They have numerous segments, each bearing two pairs of small, slender legs, which are attached ventrally, near together..

Presternum :: Presternum (n.) The anterior segment of the sternum; the manubrium.

Ectolecithal :: Ectolecithal (a.) Having the food yolk, at the commencement of segmentation, in a peripheral position, and the cleavage process confined to the center of the egg; as, ectolecithal ova..

Protovertebra :: Protovertebra (n.) One of the primitive masses, or segments, into which the mesoblast of the vertebrate embryo breaks up on either side of the anterior part of the notochord; a mesoblastic, or protovertebral, somite. See Illust. of Ectoderm..

Proleg :: Proleg (n.) One of the fleshy legs found on the abdominal segments of the larvae of Lepidoptera, sawflies, and some other insects. Those of Lepidoptera have a circle of hooks. Called also proped, propleg, and falseleg..

Tympanohyal :: Tympanohyal (n.) The proximal segment in the hyoidean arch, becoming a part of the styloid process of the temporal bone in adult man..

Meroblastic :: Meroblastic (a.) Consisting only in part of germinal matter; characterized by partial segmentation only; as, meroblastic ova, in which a portion of the yolk only undergoes fission; meroblastic segmentation; -- opposed to holoblastic..

Trisected :: Trisected (a.) Divided into three parts or segments by incisions extending to the midrib or to the base; -- said of leaves.

Spheromere :: Spheromere (n.) Any one of the several symmetrical segments arranged around the central axis and composing the body of a radiate anmal.

Periblast :: Periblast (a.) The protoplasmic matter which surrounds the entoblast, or cell nucleus, and undergoes segmentation..

Thalamencephalon :: Thalamencephalon (n.) The segment of the brain next in front of the midbrain, including the thalami, pineal gland, and pituitary body; the diencephalon; the interbrain..

Bisegment :: Bisegment (n.) One of tow equal parts of a line, or other magnitude..

Cremaster :: Cremaster (n.) The apex of the last abdominal segment of an insect.

Epibranchial :: Epibranchial (a.) Pertaining to the segment between the ceratobranchial and pharyngobranchial in a branchial arch.

Ectental :: Ectental (a.) Relating to, or connected with, the two primitive germ layers, the ectoderm and ectoderm; as, the ectental line or line of juncture of the two layers in the segmentation of the ovum..

Prosencephalon :: Prosencephalon (n.) The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain..

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