plastid

[ plas-tid ]
/ ˈplæs tɪd /
|

noun Cell Biology.

a small, double-membraned organelle of plant cells and certain protists, occurring in several varieties, as the chloroplast, and containing ribosomes, prokaryotic DNA, and, often, pigment.

Nearby words

  1. plasticizer,
  2. plasticky,
  3. plasticly,
  4. plastics,
  5. plasticware,
  6. plastique,
  7. plastiqueur,
  8. plastisol,
  9. plastometer,
  10. plastometric

Origin of plastid

1875–80; < German Plastide < Greek plastid-, stem of plástis, feminine derivative of plástēs modeler, creator, derivative of plássein to form

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for plastid



British Dictionary definitions for plastid

plastid

/ (ˈplæstɪd) /

noun

any of various small particles in the cytoplasm of the cells of plants and some animals that contain pigments, starch, oil, protein, etcSee chromoplast

Word Origin for plastid

C19: via German from Greek plastēs sculptor, from plassein to form

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

Word Origin and History for plastid

plastid

n.

1876, from German plastid, coined by Haeckel from Greek plastos "molded, formed" (see plaster) + -id.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for plastid

plastid

[ plăstĭd ]

n.

Any of several pigmented cytoplasmic organelles found in plant cells and other organisms, having various physiological functions, such as the synthesis and storage of food.trophoplast
One of the granules of foreign or differentiated matter, food particles, or waste material in cells.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for plastid

plastid

[ plăstĭd ]

An organelle found in the cells of plants, green algae, red algae, and certain other protists. Like mitochondria, plastids have an inner and outer membrane, and contain their own DNA and ribosomes. Some plastids, such as the chloroplasts in plant leaves, contain pigments.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.