1 of 3


: plasma compare germplasm


2 of 3

combining form

variants or plasmo-
: plasma


3 of 3

noun combining form

: formative or formed material (as of a cell or tissue)

Examples of plasm in a Sentence

Recent Examples on the Web
After challenges with other approaches to propagation, in 2009 Dr. Ragone, the Breadfruit Institute, and partners in Canada launched an initiative to grow trees from germ plasm, or plant genetic material. Stephanie Hanes, The Christian Science Monitor, 17 July 2023 Don't forget the ecto-plasm leaking out of the top of the bag! Marisa Lascala, Good Housekeeping, 23 Aug. 2022 The theory of germ-plasm, as described by Stoddard, was put forth by August Weismann, in 1892. Megan K. Stack, The New Yorker, 1 Sep. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'plasm.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History



Late Latin plasma something molded

Combining form

French, from New Latin plasma

Noun combining form

German -plasma, from New Latin plasma

First Known Use


1747, in the meaning defined above

Time Traveler
The first known use of plasm was in 1747

Dictionary Entries Near plasm

Cite this Entry

“Plasm.” Dictionary, Merriam-Webster, Accessed 15 Apr. 2024.

Medical Definition


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