| 释义 |
Collins Concise English Dictionary © HarperCollins Publishers:: sub- prefix - situated under or beneath: subterranean
- secondary in rank; subordinate: subeditor
- falling short of; less than or imperfectly: subarctic, subhuman
- forming a subdivision or subordinate part of a whole: subcommittee
- (in chemistry) indicating that a compound contains a relatively small proportion of a specified element: suboxide
- indicating that a salt is basic salt: subacetate
Etymology: from Latin sub sub /sʌb/USA pronunciation n., v., subbed, sub•bing. n. [countable] - Informal Termsa submarine.
- a substitute:We hired a sub to teach her class.
- Food, Dialect Termsa submarine sandwich.
v. [no object] - Informal Termsto act as a substitute for another:Can you sub for their French teacher tomorrow?
sub-, prefix. - sub- comes from Latin, where it has the meaning "under, below, beneath'':subsoil; subway.
- sub- is also used to mean "just outside of, near'':subalpine; subtropical.
- sub- is also used to mean "less than, not quite'':subhuman; subteen.
- sub- is also used to mean "secondary, at a lower point in a hierarchy'':subcommittee; subplot.
Sometimes this prefix is spelled as su-, suc-, suf-, sug-, sum-, sup-, sur-2, sus-. sub., an abbreviation of:- Militarysubstitute.
- suburb.
- suburban.
- Transportsubway.
WordReference Random House Unabridged Dictionary of American English © 2024sub (sub),USA pronunciation n., v., subbed, sub•bing. [Informal.]
n. - Informal Termsa submarine.
- a substitute.
- Food, Dialect Terms, Dialect Termsa submarine sandwich. See hero sandwich.
- Informal Termsa subcontractor.
- a sublieutenant.
- Informal Termsa subordinate.
- a subaltern.
- British Termsan advance against one's wages, esp. one granted as a subsistence allowance.
- Informal Terms, Photography[Photog.]a substratum.
v.i. - Informal Termsto act as a substitute for another.
v.t. - Informal Terms, Photography[Photog.]to coat (a film or plate) with a substratum.
- by shortening of words prefixed with sub-
- Business, Governmentsupplemental unemployment benefits.
sub-, - a prefix occurring originally in loanwords from Latin (subject;
subtract;
subvert;
subsidy);
on this model, freely attached to elements of any origin and used with the meaning "under,'' "below,'' "beneath'' (subalpine;
substratum), "slightly,'' "imperfectly,'' "nearly'' (subcolumnar;
subtropical), "secondary,'' "subordinate'' (subcommittee;
subplot). - Chemistry
- Chemistrya prefix indicating a basic compound:subacetate;subcarbonate;subnitrate.
- Chemistrya prefix indicating that the element is present in a relatively small proportion, i.e., in a low oxidation state:subchloride; suboxide.
Also, su-, suc-, suf-, sug-, sum-, sup-, sur-, sus-. - Latin, combining form representing sub (preposition); akin to Greek hypó; see hypo-
sub., - subordinated.
- Journalismsubscription.
- Militarysubstitute.
- suburb.
- suburban.
- Transportsubway.
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