Preventive

a.	1.	Going before; preceding. Any previous counsel or preventive understanding. - Cudworth.
	2.	Tending to defeat or hinder; obviating; preventing the access of; as, a medicine preventive of disease. Physic is either curative or preventive. - Sir T. Browne. Preventive service the duty performed by the armed police in guarding the coast against smuggling.
n.	1.	That which prevents, hinders, or obstructs; that which intercepts access; in medicine, something to prevent disease; a prophylactic.

Noun	1.	preventive - remedy that prevents or slows the course of an illness or disease; "the doctor recommended several preventatives" Synonyms: preventative, prophylactic
	2.	preventive - any obstruction that impedes or is burdensome Synonyms: hindrance, preventative, encumbrance, incumbrance, interference, hitch
	3.	preventive - an agent or device intended to prevent conception Synonyms: birth control device, contraceptive, contraceptive device, prophylactic device, preventative
Adj.	1.	preventive - preventing or contributing to the prevention of disease; "preventive medicine"; "vaccines are prophylactic"; "a prophylactic drug" Synonyms: preventative, prophylactic
	2.	preventive - tending to prevent or hinder Synonyms: preventative Antonyms: permissive - not preventive
	3.	preventive - tending to ward off; "the swastika...a very ancient prophylactic symbol occurring among all peoples"- Victor Schultze Synonyms: cautionary, prophylactic

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