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Platyhelminthes

American  
[plat-ee-hel-min-theez] / ˌplæt i hɛlˈmɪn θiz /

noun

  1. a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms.

Etymology

Origin of Platyhelminthes

1900–05; < New Latin (plural); see platyhelminth

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora.

From Textbooks • Jan. 1, 2015

Examples of acoelomates include animals in the phylum Platyhelminthes, also known as flatworms.

From Textbooks • Jan. 1, 2015

These acoel flatworms were long thought to belong to the phylum Platyhelminthes because of their similar “flatworm” morphology.

From Textbooks • Jan. 1, 2015

Investigating the riot of fungus, lichens, molds, smuts and mildews that festooned the place, Beebe discovered Protozoa, Coelenterata, Platyhelminthes, Nemathelminthes, and Rotifera, and was certain of the existence of Mollusca, Oligochaeta, Hirundinea and Arthropoda.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.