rostrationn.

Brit.

/rɒˈstreɪʃn/, U.S.

/ˈrɔˌstreɪʃən/,

/ˈrɑˌstreɪʃən/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin rostrātus , -ion suffix¹.

Etymology: < classical Latin rostrātus rostrate adj. + -ion suffix¹; compare -tion suffix. Compare post-classical Latin rostratio (1639 or earlier; rare). Compare earlier rostrate adj.

†1. An instance of thrusting a beak. Obsolete. rare.

ΚΠ

1658 E. Phillips New World Eng. Words Rostration,..a thrusting in the beak or bill.

1676 E. Coles Eng. Dict. Rostration,..a putting in the beak or bill.

2. Zoology. A rostrum on the shell of a mollusc; the fact of having such a rostrum. Cf. rostrate adj. 3b.

ΚΠ

1844 R. H. Hinds Zool. Voy. H.M.S. Sulphur II. 62 It [sc. Nucula cumingii] is distinguished from N. obliqua by the disposition to rostration of the anterior limb.

1853 E. Forbes & S. Hanley Hist. Brit. Mollusca II. 408 The plates..have their posterior curvature almost uninterrupted by any central rostration.

1886 W. H. Dall in Bull. Mus. Compar. Zoöl. Harvard 7 284 The tendency to rostration at the posterior end seems more marked in the older than the younger shells.

1906 Geol. Mag. 3 491 The shell can be assumed to have possessed a rostration as indicated by the dotted lines.

2002 Jrnl. Paleontol. 76 46/1 No vertical ribs on posterior rostration, and more widely spaced and punctate radial striae.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	rostration
释义	rostrationn. Brit. /rɒˈstreɪʃn/, U.S. /ˈrɔˌstreɪʃən/, /ˈrɑˌstreɪʃən/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin rostrātus , -ion suffix¹. Etymology: < classical Latin rostrātus rostrate adj. + -ion suffix¹; compare -tion suffix. Compare post-classical Latin rostratio (1639 or earlier; rare). Compare earlier rostrate adj. †1. An instance of thrusting a beak. Obsolete. rare. ΚΠ 1658 E. Phillips New World Eng. Words Rostration,..a thrusting in the beak or bill. 1676 E. Coles Eng. Dict. Rostration,..a putting in the beak or bill. 2. Zoology. A rostrum on the shell of a mollusc; the fact of having such a rostrum. Cf. rostrate adj. 3b. ΚΠ 1844 R. H. Hinds Zool. Voy. H.M.S. Sulphur II. 62 It [sc. Nucula cumingii] is distinguished from N. obliqua by the disposition to rostration of the anterior limb. 1853 E. Forbes & S. Hanley Hist. Brit. Mollusca II. 408 The plates..have their posterior curvature almost uninterrupted by any central rostration. 1886 W. H. Dall in Bull. Mus. Compar. Zoöl. Harvard 7 284 The tendency to rostration at the posterior end seems more marked in the older than the younger shells. 1906 Geol. Mag. 3 491 The shell can be assumed to have possessed a rostration as indicated by the dotted lines. 2002 Jrnl. Paleontol. 76 46/1 No vertical ribs on posterior rostration, and more widely spaced and punctate radial striae. This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022). < n.1658
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