premedianadj.

Brit.

/priːˈmiːdɪən/, U.S.

/ˌpriˈmidiən/

Forms: 1800s praemedian, 1800s– premedian.

Origin: Formed within English, by derivation. Etymons: pre- prefix, median adj.²

Etymology: < pre- prefix + median adj.² Compare premedial adj.

Zoology and Palaeontology.

Situated anterior to the median line; preceding or in front of a median position or part.

ΚΠ

1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 334 Præmedian margin abrupt.

1892 Trans. Amer. Philos. Soc. 30 224 The premedian plate is crossed by a groove which presents an abrupt loop backwards at the middle.

1944 Amer. Midland Naturalist 31 648 Hemelytra widest at basal third and with a premedian dark bar across costal area.

1961 Trans. Amer. Microsc. Soc. 80 421 Its premedian testes differentiate [the trematode] X. dhamini from all other described species of Xenopharynx.

2001 Jrnl. Vertebr. Palaeontol. 21 687 The structure of the..placoderm fish Asterolepis ornata has been studied, providing a detailed description of the premedian, rostral, and pineal plates.

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	premedian
释义	premedianadj. Brit. /priːˈmiːdɪən/, U.S. /ˌpriˈmidiən/ Forms: 1800s praemedian, 1800s– premedian. Origin: Formed within English, by derivation. Etymons: pre- prefix, median adj.² Etymology: < pre- prefix + median adj.² Compare premedial adj. Zoology and Palaeontology. Situated anterior to the median line; preceding or in front of a median position or part. ΚΠ 1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 334 Præmedian margin abrupt. 1892 Trans. Amer. Philos. Soc. 30 224 The premedian plate is crossed by a groove which presents an abrupt loop backwards at the middle. 1944 Amer. Midland Naturalist 31 648 Hemelytra widest at basal third and with a premedian dark bar across costal area. 1961 Trans. Amer. Microsc. Soc. 80 421 Its premedian testes differentiate [the trematode] X. dhamini from all other described species of Xenopharynx. 2001 Jrnl. Vertebr. Palaeontol. 21 687 The structure of the..placoderm fish Asterolepis ornata has been studied, providing a detailed description of the premedian, rostral, and pineal plates. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < adj.1852
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