contaminative

con·tam·i·nate  (kn-tm-nt)

tr.v. con·tam·i·nated, con·tam·i·nat·ing, con·tam·i·nates

1. To make impure or unclean by contact or mixture.

2. To expose to or permeate with radioactivity.

n. (-nt)

One that contaminates; a contaminant.

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[Middle English contaminaten, from Latin contminre, contmint-; see tag- in Indo-European roots.]

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con·tami·native adj.

con·tami·nator n.

Synonyms: contaminate, befoul, foul, poison, pollute, taint
These verbs mean to make dirty or impure: Pesticides contaminated the lake. Mud befouled my shoes. Noxious fumes fouled the air. Drugs poisoned her mind. Exhaust polluted the air. Improper storage tainted the food.

Thesaurus

Adj.

1.

contaminative - making impure by contact or mixing infected, septic - containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage"