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nucleoid

[noo-klee-oid, nyoo-]Microbiology
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noun
  1. the central region in a prokaryotic cell, as a bacterium, that contains the chromosomes and that has no surrounding membrane.
adjective
  1. resembling a nucleus.

Origin of nucleoid

First recorded in 1850–55; nucle(us) + -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
nucleoid in Medicine

nucleoid

(nōō′klē-oid′)
n.
  1. nucleus
  2. nuclear inclusion body
adj.
  1. Resembling a nucleolus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.