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a combining form meaning “having parts” of the kind or number specified by the initial element: dimerous.
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Compare -mer, -mere.

Origin of -merous

<Greek -meros, adj. derivative of méros part, portion, share; see -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What does -merous mean?

The combining form -merous is used like a suffix to mean “having parts.” It is occasionally used in scientific terms, especially in botany.

The form -merous comes from Greek méros, meaning “part” or “portion.” From this same source, we also inherit the combining forms -mer and -mere.

Want to know more? Check out our Words That Use entries for both forms.

Examples of -merous

One example of a scientific term that features the form -merous is heptamerous, “consisting of or divided into seven parts.”

The first part of the word, hepta-, means “seven,” from Greek heptá, while the form -merous means “having parts.” Heptamerous literally translates to “having seven parts.”

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

Not every word that ends with the exact letters -merous, such as numerous, is necessarily using the combining form -merous to denote “having parts.” Learn why numerous means “many” at our entry for the word.

Break it down!

The combining form di- means “two.” With this in mind, what does dimerous literally mean?

How to use -merous in a sentence

  • Bathing and swimming supply, in their nu merous forms, examples of both healthful activity and relaxation.

    How to Live|Irving Fisher and Eugene Fisk

British Dictionary definitions for -merous


adj combining form
(in biology) having a certain number or kind of partsdimerous

Word Origin for -merous

from Greek meros part, division
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