Zygapophysis
one of the four processes of a vertebra, occurring in pairs that interlock each vertebra with the vertebrae above and below.
historical examples
zygapophysis, zī-ga-pof′i-sis, n. one of the yoke-pieces or articulations of the vertebr: pl.
chambers’s twentieth century dictionary (part 4 of 4: s-z and supplements) various
noun (pl) -ses (-ˌsiːz)
(anatomy, zoology) one of several processes on a vertebra that articulates with the corresponding process on an adjacent vertebra
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- Zygodactyl
also, zygodactylous. (of a bird) having the toes of each foot arranged in pairs, with two toes in front and two behind. a zygodactyl bird. adjective (of the feet of certain birds) having the first and fourth toes directed backwards and the second and third forwards noun a zygodactyl bird compare heterodactyl
- Zygodactylous
also, zygodactylous. (of a bird) having the toes of each foot arranged in pairs, with two toes in front and two behind. a zygodactyl bird. historical examples scansores, or climbing, frequently called zygodactyli or zygodactylous birds. everyday objects w. h. davenport adams adjective (of the feet of certain birds) having the first and fourth toes […]
- Zygodactyly
zygodactyly zygodactyly zy·go·dac·ty·ly (zī’gə-dāk’tə-lē) n. see syndactyly.
- Zygogenesis
the formation of a zygote. reproduction by means of gametes. zygogenesis zy·go·gen·e·sis (zī’gō-jěn’ĭ-sĭs) n. reproduction involving the formation of a zygote.
- Zygoma
. the of the temporal bone. . historical examples the contracted temporal muscle forms a prominence above the zygoma. manual of surgery volume second: extremities–head–neck. sixth edition. alexander miles the facial portion of the skull is short, and the zygoma is deep. the cambridge natural history, vol x., mammalia frank evers beddard in front of […]