physostomousadj.

Brit.

/fʌɪˈsɒstəməs/, U.S.

/faɪˈsɑstəməs/

Origin: A borrowing from Greek, combined with English elements; modelled on a Latin lexical item. Etymons: physo- comb. form, Greek στόμα , -ous suffix.

Etymology: < physo- comb. form + ancient Greek στόμα mouth (see stoma n.) + -ous suffix, after scientific Latin Physostomi (see physostome adj. and n.). Compare slightly later physoclistous adj.

Ichthyology.

Of, relating to, or designating a teleost fish in which there is an opening between the swim-bladder and the gut. Cf. physoclistous adj.

ΚΠ

1868 E. D. Cope in Proc. Acad. Nat. Sci. Philadelphia 281 It [sc. parallelism] is carried out between the Characins and a group of remaining Physostomous Fishes.

1887 E. D. Cope Origin Fittest 327 The descent of the Physoclystous fishes has probably been from Holostean ancestors, both with and without the intervention of Physostomous forms.

1925 P. Radin & V. C. C. Collum tr. E. Perrier Earth before Hist. ii. vi. 154 They [sc. deep-sea fish] belong to well-known groups—most commonly to the type of ‘abdominal’ or physostomous Fish.

1997 G. S. Helfman et al. Diversity of Fishes v. 63/2 The gas bladder is derived as an outpocket from the esophagus, and in some groups it retains its connection to the gut via the pneumatic duct (the physostomous condition).

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	physostomous
释义	physostomousadj. Brit. /fʌɪˈsɒstəməs/, U.S. /faɪˈsɑstəməs/ Origin: A borrowing from Greek, combined with English elements; modelled on a Latin lexical item. Etymons: physo- comb. form, Greek στόμα , -ous suffix. Etymology: < physo- comb. form + ancient Greek στόμα mouth (see stoma n.) + -ous suffix, after scientific Latin Physostomi (see physostome adj. and n.). Compare slightly later physoclistous adj. Ichthyology. Of, relating to, or designating a teleost fish in which there is an opening between the swim-bladder and the gut. Cf. physoclistous adj. ΚΠ 1868 E. D. Cope in Proc. Acad. Nat. Sci. Philadelphia 281 It [sc. parallelism] is carried out between the Characins and a group of remaining Physostomous Fishes. 1887 E. D. Cope Origin Fittest 327 The descent of the Physoclystous fishes has probably been from Holostean ancestors, both with and without the intervention of Physostomous forms. 1925 P. Radin & V. C. C. Collum tr. E. Perrier Earth before Hist. ii. vi. 154 They [sc. deep-sea fish] belong to well-known groups—most commonly to the type of ‘abdominal’ or physostomous Fish. 1997 G. S. Helfman et al. Diversity of Fishes v. 63/2 The gas bladder is derived as an outpocket from the esophagus, and in some groups it retains its connection to the gut via the pneumatic duct (the physostomous condition). This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1868
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