请输入您要查询的英文单词:

 

单词 polyglacial
释义

polyglacialadj.

Brit. /ˌpɒlɪˈɡleɪʃl/, /ˌpɒlɪˈɡleɪsɪəl/, U.S. /ˌpɑliˈɡleɪʃ(ə)l/
Origin: Formed within English, by compounding. Etymons: poly- comb. form, glacial adj.
Etymology: < poly- comb. form + glacial adj. (compare sense 3 at that entry).
Geology. Now rare.
Designating the theory that postulates more than one glacial period during the Pleistocene epoch; comprising more than one glacial period.
ΚΠ
1922 Man 22 6 In this country..opinion in official geological circles favours the monoglacial theory... Some years ago James Geikie advanced a polyglacial theory, founded largely on Scotch evidence.
1937 Geogr. Jrnl. 90 180 Formerly James Geikie, almost alone, insistently voiced the case for the polyglacial view and perhaps he strained it by over-statement.
1972 B. W. Sparks & R. G. West Ice Age in Brit. v. 123 The limits of the successive glaciations of this polyglacial sequence, imperfectly known at present, are shown.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
<
adj.1922
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/24 20:33:53