a hard or padded protective hat, various types of which are worn by soldiers, police officers, motorcyclists, sports players, and others (士兵、警察、摩托车手、运动员等戴的)头盔,防护帽
(Botany)the arched upper part (galea) of the corolla in some flowers, especially those of the mint and orchid families (植)(尤指唇形科和兰科花朵的)花冠盔瓣,唇瓣
(亦作 helmet shell)a predatory mollusc with a squat heavy shell, which lives in tropical and temperate seas and preys chiefly on sea urchins 外颚叶
Family Cassidae, class Gastropoda 冠螺科,腹足纲
派生 helmeted adjective 语源
late Middle English: from Old French, diminutive of helme, of Germanic origin; related to helm