unioniformadj.

Brit.

/ˈjuːnɪənᵻfɔːm/, U.S.

/ˈjunjənᵻˌfɔrm/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Unio , -iform comb. form.

Etymology: < scientific Latin Unio unio n. (with insertion of -n- after its classical Latin etymon ūniōn-, ūniō) + -iform comb. form.

Zoology.

Belonging to or resembling a unionid; unionoid.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [adjective] > of, belonging to, or resembling the Unionidae

unioniform1829

hippurite1831

unioid1861

unionoid1879

1829 J. Phillips Illustr. Geol. Yorks. I. iii. 91 Rough, sandy, upper beds of lias shale, which lower down become regularly fissile, and are full of ammonites, belemnites, unioniform shells, &c.

1868 R. Tate App. to Woodward's Mollusca 71 Anthracosia differs from Unio, to which genus the majority of the Unioniform shells have been referred.

1907 Q. Jrnl. Geol. Soc. 63 139 Mr. Mawson's collections contained some interesting molluscan remains, among which were a number of Anodont—or Unioniform—shells.

2008 Jrnl. N. Amer. Benthol. Soc. 27 356/2 A consensus appears to be emerging that there are 2 superfamilies of unioniform bivalves.

This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022).

单词	unioniform
释义	unioniformadj. Brit. /ˈjuːnɪənᵻfɔːm/, U.S. /ˈjunjənᵻˌfɔrm/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Unio , -iform comb. form. Etymology: < scientific Latin Unio unio n. (with insertion of -n- after its classical Latin etymon ūniōn-, ūniō) + -iform comb. form. Zoology. Belonging to or resembling a unionid; unionoid. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [adjective] > of, belonging to, or resembling the Unionidae unioniform1829 hippurite1831 unioid1861 unionoid1879 1829 J. Phillips Illustr. Geol. Yorks. I. iii. 91 Rough, sandy, upper beds of lias shale, which lower down become regularly fissile, and are full of ammonites, belemnites, unioniform shells, &c. 1868 R. Tate App. to Woodward's Mollusca 71 Anthracosia differs from Unio, to which genus the majority of the Unioniform shells have been referred. 1907 Q. Jrnl. Geol. Soc. 63 139 Mr. Mawson's collections contained some interesting molluscan remains, among which were a number of Anodont—or Unioniform—shells. 2008 Jrnl. N. Amer. Benthol. Soc. 27 356/2 A consensus appears to be emerging that there are 2 superfamilies of unioniform bivalves. This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022). < adj.1829
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