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definitions

parasitic

[par-uh-sit-ik]

adjective

of, relating to, or characteristic of parasites.
(of diseases) due to parasites.
Phonetics. excrescent(def 2).
Sometimes par·a·sit·i·cal.

Origin of parasitic

1620–30; < Latin parasīticus < Greek parasītikós. See parasite, -ic
Related formspar·a·sit·i·cal·ly, adverbpar·a·sit·i·cal·ness, nounan·ti·par·a·sit·ic, noun, adjectivean·ti·par·a·sit·i·cal, adjectivean·ti·par·a·sit·i·cal·ly, adverbnon·par·a·sit·ic, adjectivenon·par·a·sit·i·cal, adjectivenon·par·a·sit·i·cal·ly, adverbpseu·do·par·a·sit·ic, adjectiveun·par·a·sit·ic, adjectiveun·par·a·sit·i·cal, adjectiveun·par·a·sit·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin and History for antiparasitic

parasitic

adj.

1620s, from Latin parasiticus, from Greek parasitikos "of or pertaining to a parasite; the trade of a parasite," from parasitos (see parasite). Biological sense is from 1731. Related: Parasitical, 1570s in reference to toadies; from 1640s in the biological sense.

Online Etymology Dictionary, © 2010 Douglas Harper
antiparasitic in Medicine

antiparasitic

[ăn′tē-păr′ə-sĭt′ĭk, ăn′tī-]

adj.

Destroying or inhibiting the growth and reproduction of parasites.
Related formsan′ti•par′a•sit′ic n.

parasitic

[păr′ə-sĭt′ĭk]

adj.

Of, relating to, or characteristic of a parasite.
Caused by a parasite.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.