(nonstandard, linguistics) The katakana syllable ル゚ (lu). Its equivalent in hiragana is る゚ (lu)

to strike (as to send flying); to beat; to knock / to jump with force; to leap / to accomplish a task very rapidly / to drive at full speed (e.g. a car)

light source (source of illumination)

後半: second half / 公判: trial / 鋼板: steel plate / 甲板: deck of a ship / 紅斑: erythema / 孔版: mimeograph / 攪拌: agitation