Dictionary
Thesaurus
Encyclopedia
Translator
Web

ribosome

 - 6 dictionary results

ri⋅bo⋅some

[rahy-buh-sohm]
–noun Cell Biology.
a tiny, somewhat mitten-shaped organelle occurring in great numbers in the cell cytoplasm either freely, in small clusters, or attached to the outer surfaces of endoplasmic reticula, and functioning as the site of protein manufacture.


Origin:
1955–60; ribo(se) + -some 3


ri⋅bo⋅so⋅mal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To ribosome
ri·bo·some   (rī'bə-sōm')   
n.  A minute round particle composed of RNA and protein that is found in the cytoplasm of living cells and serves as the site of assembly for polypeptides encoded by messenger RNA.

[ribo(nucleic acid) + -some3.]
ri'bo·so'mal (-sō'məl) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Cultural Dictionary

ribosome [(reye-buh-sohm)]

A small, ball-like structure in the cell, made of proteins and RNA molecules, that serves as a platform on which the cell's proteins are made.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Word Origin & History

ribosome 
1958, coined by R.B. Roberts from ribo(nucleic acid) + -some "body."
Online Etymology Dictionary, © 2001 Douglas Harper
Cite This Source
Medical Dictionary

Main Entry: ri·bo·some
Pronunciation: 'rI-b&-"sOm
Function: noun
: any of the RNA- and protein-rich cytoplasmic organelles that are sites ofprotein synthesis —ri·bo·som·al /"rI-b&-'sO-m&l/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source
Medical Dictionary

ribosome ri·bo·some (rī'bə-sōm')
n.
A minute round cytoplasmic particle composed of RNA and protein that is the site of protein synthesis as directed by mRNA.


ri'bo·so'mal (-sō'məl) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Search another word or see ribosome on Thesaurus | Reference
FacebookTwitterFollow us: