噛合う[kamiau] to gear (engage) with
噛み合せる[kamiawaseru] to clench (teeth)
噛砕く[kamikudaku] to crunch
噛殺す[kamikorosu] to stifle a smile, yawn, etc.
噛熟す[kamikonasu] to chew

噛み切る[kamikiru] to bite off
噛締める[kamishimeru] to chew thoroughly
噛付く[kamitsuku] to bite (at)
噛分ける[kamiwakeru] to taste
噛む[kamu] to bite

ご苦労様[gokurousama] thank you very much for your ...
御苦労さん[gokurousan] I appreciate your efforts
苦力[kuurii] coolie
悪戦苦闘[akusenkutou] hard fighting
気苦労[kigurou] worry

夜露死苦[yoroshiku] well
狭苦しい[semakurushii] cramped
勤苦[kinku] toil and hardship
苦い[nigai] bitter
苦しい[kurushii] painful

ランブル鞭毛虫[ranburubenmouchuu] giardia (flagellate protozoan)
ランブル鞭毛虫症[ranburubenmouchuushou] giardiasis
いも虫[imomushi] hornworm (caterpillar of a hawk moth)
益虫[ekichuu] useful insect
円虫類[enchuurui] round worms

夏虫[natsumushi] summer insect
蛔虫[kaichuu] roundworm (Ascaris lumbricoides)
害虫[gaichuu] harmful insect
鈎虫[kouchuu] hookworm
寄生虫[kiseichuu] parasite