Search Dictionary
Definition of parasite

parasite

/ˈpær.ə.saɪt/
par · a · site

Adverb:parasitically
•
Plural:parasites
•
Adjective:parasitic
JUMP TO:

parasite Lexical Profile

parasite Game Scores & Validity

• noun

1

An organism that lives in or on another organism of a different species (the host) and benefits by deriving nutrients at the host's expense.

Example

"Ticks and tapeworms are common examples of a parasite that can harm domestic pets."


2

A person who habitually relies on or exploits the generosity, wealth, or hospitality of others without making any useful return.

Example

"His family grew tired of supporting him after he refused to look for work and acted like a parasite."

Synonyms
View all synonyms for parasite
Antonyms
View all antonyms for parasite

• Rhymes for parasite

Word Origin & Etymology

Borrowed via Middle French and Latin from the Ancient Greek 'parasitos', meaning 'one who eats at the table of another,' formed from 'para-' (beside) and 'sitos' (wheat or food). In classical antiquity, it originally referred to temple assistants or flattering dinner guests before acquiring its modern biological meaning in the 17th and 18th centuries.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Parasite. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/parasite
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Dictionary & Reference
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.