WordNet

an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
(genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring
a rack attached to a vehicle; for carrying luggage or skis or the like
a self-propelled wheeled vehicle designed specifically to carry something; "refrigerated carriers have revolutionized the grocery business"
someone whose employment involves carrying something; "the bonds were transmitted by carrier" (同)bearer, toter
a person or firm in the business of transporting people or goods or messages (同)common_carrier
(medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others (同)immune carrier
a boy who delivers newspapers (同)newsboy
the 8th letter of the Roman alphabet (同)h
any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
having no symptoms of illness or disease (同)symptomless

PrepTutorEJDIC

『運搬する人』;輸送業者(会社) / 運搬する物,運客車;運客設備 / (…の)媒介体,保菌者《+『of』+『名』》 / (また『aircraft carrier』)航空母艦 / (自転車・車の)荷台
hydrogenの化学記号
鉛筆の硬度 / 《俗》heroin
抗原(生物の体内にはいって免疫体を作る物質)