[ mawrf ]
/ mɔrf /
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See synonyms for: morph / morphing on Thesaurus.com

Linguistics. a sequence of phonemes constituting a minimal unit of grammar or syntax, and, as such, a representation, member, or contextual variant of a morpheme in a specific environment.Compare allomorph (def. 2).
Biology. an individual of one particular form, as a worker ant, in a species that occurs in two or more forms.
verb (used with object)
to transform (an image) by computer.
verb (used without object)
to be transformed: morphing from a tough negotiator to Mr. Friendly.
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Origin of morph

1945–50; back formation from morpheme, or independent use of -morph


morphic, adjective

Other definitions for morph (2 of 3)


variant of morpho- before a vowel: morpheme.

Other definitions for morph (3 of 3)


a combining form meaning “form, structure,” of the kind specified by the initial element: isomorph.

Origin of -morph

<Greek -morphos;see -morphous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What does morph- mean?

Morph- is a combining form used like a prefix meaning “form, structure.” It is often occasionally used in scientific terms, especially in biology and linguistics.

Morph- comes from Greek morphḗ, meaning “form.”

What are variants of morph-?

Morph– is a variant of morpho, which loses its –o– when combined with words or word elements beginning with vowels. Additional related combining forms include morphic, morphism, and morphous. Want to know more? Read our Words That Use articles on all four combining forms.

Examples of morph-

One example of a scientific term that features the form morph– is morphosis, “the sequence or manner of development or change in an organism or any of its parts.” The word morphosis comes from Greek mórphōsis, which uses the equivalent of morph– in that language.

As we have seen, morph– means “form,” and the osis portion of the word refers to “action” or “state of being,” from Greek –ōsis. Morphosis literally means “the state of forms.”

What are some words that use the combining form morph-?

What are some other forms that morph– may be commonly confused with?

Not every word that begins with the exact letters morph-, such as morphine, is necessarily using the combining form morph– to denote “form.” Learn how the drug morphine got its name at our entry for the word.

Break it down!

The suffix eme is used in linguistics to mean “significant unit.” With this in mind, what does morpheme mean?

How to use morph in a sentence

British Dictionary definitions for morph (1 of 5)

/ (mɔːf) /

linguistics the phonological representation of a morpheme

Word Origin for morph

C20: shortened form of morpheme

British Dictionary definitions for morph (2 of 5)

/ (mɔːf) /

biology any of the different forms of individual found in a polymorphic species

Word Origin for morph

C20: from Greek morphē shape

British Dictionary definitions for morph (3 of 5)

/ (mɔːf) /

to undergo or cause to undergo morphing
to transform or be transformed completely in appearance or characterhe morphed from nerd into pop icon
a morphed image

British Dictionary definitions for morph (4 of 5)


n combining form
indicating shape, form, or structure of a specified kindectomorph

Derived forms of -morph

-morphic or -morphous, adj combining form-morphy, n combining form

Word Origin for -morph

from Greek -morphos, from morphē shape

British Dictionary definitions for morph (5 of 5)



abbreviation for
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for morph


Form; shape; structure:endomorph.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for morph

[ môrf ]

A phenotypically distinct form of an organism or species.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.