||Gas*tor"nis (?), n. [NL., from Gaston M. Plante, the discover + Gr.
||&?; bird.] (Paleon.) A genus of large eocene birds from the Paris
||basin.
||Gas*trÊ"a (?), n. [NL., from Gr. &?;, &?;, the stomach.] (Biol.) A
||primeval larval form; a double-walled sac from which, according to
||the hypothesis of Haeckel, man and all other animals, that in the
||first stages of their individual evolution pass through a two-layered
||structural stage, or gastrula form, must have descended. This idea
||constitutes the GastrÊa theory of Haeckel. See Gastrula.
||Gas*tral"gi*a (?), n. [NL., fr. Gr. &?;, &?;, stomach + &?; pain.]
||(Med.) Pain in the stomach or epigastrium, as in gastric disorders.
Gas"tric (?), a. [Gr. &?;, &?;, stomach: cf. F. gastrique.] Of,
pertaining to, or situated near, the stomach; as, the gastric artery.
Gastric digestion (Physiol.), the conversion of the albuminous portion
of food in the stomach into soluble and diffusible products by the
solvent action of gastric juice. -- Gastric fever (Med.), a fever
attended with prominent gastric symptoms; -- a name applied to certain
forms of typhoid fever; also, to catarrhal inflammation of the stomach
attended with fever. -- Gastric juice (Physiol.), a thin, watery fluid,
with an acid reaction, secreted by a peculiar set of glands contained
in the mucous membrane of the stomach. It consists mainly of dilute
hydrochloric acid and the ferment pepsin. It is the most important
digestive fluid in the body, but acts only on proteid foods. -- Gastric
remittent fever (Med.), a form of remittent fever with pronounced
stomach symptoms.
Gas*tril"o*quist (?), n. [Gr. gasth`r, gastro`s, stomach + L. loqui to
speak.] One who appears to speak from his stomach; a ventriloquist.