释义 |
WordReference Random House Unabridged Dictionary of American English © 2024prop•a•ga•tion (prop′ə gā′shən),USA pronunciation n. - Developmental Biology, Geneticsthe act of propagating.
- the fact of being propagated.
- Developmental Biology, Geneticsmultiplication by natural reproduction.
- transmission or dissemination.
- Latin propāgātiōn- (stem of propāgātiō). See propagate, -ion
- late Middle English propagacyon 1400–50
prop′a•ga′tion•al, adj. - 4.See corresponding entry in Unabridged spreading, dispersion, diffusion.
WordReference Random House Learner's Dictionary of American English © 2024prop•a•gate /ˈprɑpəˌgeɪt/USA pronunciation v., -gat•ed, -gat•ing. - Developmental Biology, Geneticsto (cause to) multiply or increase by any process of natural reproduction from the parent stock: [~ + object]to propagate seeds; These flowers will propagate themselves.[no object]The insects propagated vigorously.
- [~ + object] to spread (a report, doctrine, practice, etc.) from person to person; disseminate.
prop•a•ga•tion /ˌprɑpəˈgeɪʃən/USA pronunciation n. [uncountable] WordReference Random House Unabridged Dictionary of American English © 2024prop•a•gate (prop′ə gāt′),USA pronunciation v., -gat•ed, -gat•ing. v.t. - Developmental Biology, Geneticsto cause (an organism) to multiply by any process of natural reproduction from the parent stock.
- Developmental Biology, Geneticsto reproduce (itself, its kind, etc.), as an organism does.
- Developmental Biology, Geneticsto transmit (hereditary features or elements) to, or through, offspring.
- to spread (a report, doctrine, practice, etc.) from person to person; disseminate.
- to cause to increase in number or amount.
- Mechanicsto create (an effect) at a distance, as by electromagnetic waves, compression waves, etc., traveling through space or a physical medium;
transmit:to propagate sound. v.i. - Developmental Biology, Geneticsto multiply by any process of natural reproduction, as organisms;
breed. - to increase in extent, as a structural flaw:The crack will propagate only to this joint.
- (of electromagnetic waves, compression waves, etc.) to travel through space or a physical medium.
- Latin propāgātus (past participle of propāgāre to reproduce (a plant) by cuttings, spread for sprouting, propagate, enlarge), equivalent. to propāg(ēs) something set out, scion, slip (pro- pro-1 + pāg-, base of pangere to fasten + -ēs noun, nominal suffix) + -ātus -ate1
- 1560–70
prop′a•ga′tive, prop•a•ga•to•ry (prop′ə gə tôr′ē, -tōr′ē),USA pronunciation adj. prop′a•ga′tor, n. |