| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024me•ta1 (mē′tə),USA pronunciation n., pl. -tae (-tē).USA pronunciation - Ancient History(in ancient Rome) a column or post, or a group of columns or posts, placed at each end of a racetrack to mark the turning places.
- Latin mēta cone, turning post
- 1570–80
- Chemistrypertaining to or occupying two positions (1, 3) in the benzene ring that are separated by one carbon atom. Cf. ortho, para 3.See diag. under ortho.
- independent use of meta- 1875–80
- a female given name.
meta-, - a prefix appearing in loanwords from Greek, with the meanings "after,'' "along with,'' "beyond,'' "among,'' "behind,'' and productive in English on the Greek model:metacarpus;metagenesis;metalinguistics.
- Chemistry
- (of acids, salts, or their organic derivatives) a prefix denoting the least hydrated of a series:meta-antimonic,HSbO3;
meta-antimonous, HSbO2. Cf. ortho-, pyro-. - a prefix designating the meta position in the benzene ring. Abbr.: m-. Cf. ortho-, para- 1.
Also,[esp. before a vowel,] met-. - Greek, prefix and preposition; cognate with Old English mid with, German mit, Gothic mith
WordReference Random House Learner's Dictionary of American English © 2024meta-, prefix. - meta- comes from Greek, where it has the meanings "after, along with, beyond, among, behind.'' These meanings are found in such words as: metabolism, metamorphosis, metaphor, metaphysics.
Collins Concise English Dictionary © HarperCollins Publishers:: meta-, (sometimes before a vowel)met- prefix - indicating change, alteration, or alternation: metabolism, metamorphosis
- (of an academic discipline, esp philosophy) concerned with the concepts and results of the named discipline: metamathematics, meta-ethics
- occurring or situated behind or after
- (often in italics) denoting that an organic compound contains a benzene ring with substituents in the 1,3-positions: metadinitrobenzene, meta-cresol
Abbreviation: m- - denoting an isomer, polymer, or compound related to a specified compound (often differing from similar compounds that are prefixed by para-): metaldehyde
- denoting an oxyacid that is a lower hydrated form of the anhydride or a salt of such an acid: metaphosphoric acid
Etymology: Greek, from meta with, after, between, among. Compare Old English mid, mith with, Old Norse meth with, between |