inseminate v. + Add to list US //ˌɪnˈsɛməˌneɪt// UK //ɪnsˈɛmɪnˌeɪt// in·sem·i·nate SynonymsEtymology Synonyms fecundatefertilizesowOriginLATinseminatus→ENinseminate From Latin inseminatus, past participle of inseminare (“to sow”). See seminate.