单词 | physostome |
释义 | physostomeadj.n. Ichthyology. A. adj. = physostomous adj. ΚΠ 1879 Philos. Trans. 1878 (Royal Soc.) 169 705 If transitional links are needed they may be found in the Cyprinoidei and other generalised physostome Teleostei. 1887 A. Heilprin Geogr. & Geol. Distribution Animals 303 Both the physoclist and physostome types appear..very nearly simultaneously in the same deposits. 1956 Science 13 Jan. 59/1 For physostome fishes there is no knowledge so far concerning the identity of the gas they secrete. B. n. A physostomous fish. ΘΚΠ the world > animals > fish > class Osteichthyes or Teleostomi > subclass Actinopterygii > subdivision Teleostei > [noun] > member of order Physostomi physostome1880 1880 A. Günther Introd. Study of Fishes 199 [In] the Cretaceous group..Physostomes and Plectognaths are likewise well represented. 1977 Science 22 July 383/1 Gas secretion has been demonstrated in many physostomes; however, it is among the physoclists that gas-secreting abilities are most highly developed. Derivatives physoˈstomatous adj. physostomous. ΚΠ 1890 Cent. Dict. Physostomatous. 2002 in D. I. Gibson et al. Keys to Trematoda I. 369 These families..have in common an almost unique niche, the swim-bladder of physostomatous teleosts. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.n.1879 |
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