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microsome

[ mahy-kruh-sohm ]

noun

, Cell Biology.
  1. a small inclusion, consisting of ribosomes and fragments of the endoplasmic reticulum and mitochondria, in the cytoplasm of a cell.


microsome

/ ˈmaɪkrəʊˌsəʊm /

noun

  1. any of the small particles consisting of ribosomes and fragments of attached endoplasmic reticulum that can be isolated from cells by centrifugal action
“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
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Derived Forms

  • ˌmicroˈsomal, adjective
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Other Words From

  • micro·somal micro·somi·al micro·somic adjective
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Word History and Origins

Origin of microsome1

First recorded in 1880–85; micro- + -some 3
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Example Sentences

It has now, however, been clearly demonstrated as an active part of the cell and entirely distinct from the ordinary microsomes.

It may be no larger than the minute granules or microsomes in the cell, and until recently it entirely escaped the notice of microscopists.

It is immaterial for our purpose, however, whether the fibres are to be regarded as made up of microsomes or not.

Shall it be the linin, or the liquids, or the microsomes, or the chromatin threads, or the centrosomes?

It appears that the fibrous material is always marked by the presence of excessively minute bodies, which have been called by various names, but which we will speak of as microsomes.

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microsociologymicrospecies