plasm-
1 Americannoun
-
protoplasm of a specified type
germ plasm
-
a variant of plasma
combining form
Usage
What does -plasm mean? The combining form -plasm is used like a suffix meaning “living substance,” "tissue," "substance of a cell." It is very occasionally used in scientific terms, especially in biology. The form -plasm comes from Greek plásma, meaning “something molded or formed.” Find out how plásma is related to plaster and plastic at our entries for both words. What are variants of -plasm?The form -plasm does not have any variants. However, it is related to the combining forms plasmo- and plasm-, as in plasmapheresis. Additional related forms include -plasia, -plasy, -plastic, and -plasty. To learn more, check out our Words That Use articles about these forms.
Other Word Forms
Etymology
Origin of -plasm
Combining form representing Greek plásma. See plasma
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.
Some would-be architects of our future look toward a time when we will be able to alter the human germ plasm by design.
From The New Yorker ● Jan. 3, 2017
Huxley would later admit that he was wrong about the deep-sea muck, but many 19th-century biologists thought that plasm was the stuff of life.
From Slate ● Jul. 18, 2016
It holds more than 500,000 samples of crop germ plasm, providing a backup for the national and international seed banks that donated the material.
From Science Magazine ● May 15, 2015
Once these have had their germ plasm preserved, they are sold to other farms to create satellite populations.
From New York Times ● Jan. 7, 2010
Some would-be architects of our future look toward a time when it will be possible to alter the human germ plasm by design.
From "Silent Spring" by Rachel Carson
![]()
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.