| 释义 |
cer·ta·tion
\(ˌ)sərˈtāshən\ noun
(-s)
Etymology: Latin certation-, certatio contest, from certatus, past participle of certare to fight, contend, settle something by a contest, from certus certain — more at certain
: competition between male elements of different genotype for opportunity to fertilize available female elements especially as manifested by differential growth of pollen tubes |