资料来源 : pyDict

预防疾病的预防药,预防法,避孕药

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Prophylactic \Proph`y*lac"tic\, n. [Cf. F. prophylactique.]
   (Med.)
   A medicine which preserves or defends against disease; a
   preventive.

Prophylactic \Proph`y*lac"tic\, Prophylactical
\Proph`y*lac"tic*al\, a. [Gr. ?, fr. ? to guard against; ?
   before + ? to guard: cf. F. prophylactique.] (Med.)
   Defending or preserving from disease; preventive. --Coxe.

资料来源 : WordNet®

prophylactic
     n 1: remedy that prevents or slows the course of an illness or
          disease; "the doctor recommended several preventatives"
          [syn: {preventive}, {preventative}]
     2: contraceptive device consisting of a thin rubber or latex
        sheath worn over the penis during intercourse [syn: {condom},
         {rubber}, {safety}, {safe}]

prophylactic
     adj 1: capable of preventing conception or impregnation;
            "contraceptive devices and medications" [syn: {contraceptive},
             {antifertility}]
     2: tending to ward off; "the swastika...a very ancient
        prophylactic symbol occurring among all peoples"- Victor
        Schultze [syn: {cautionary}, {preventive}]
     3: preventing or contributing to the prevention of disease;
        "preventive medicine"; "vaccines are prophylactic"; "a
        prophylactic drug" [syn: {preventive}, {preventative}]