nucleoid

[ noo-klee-oid, nyoo- ]
/ ˈnu kliˌɔɪd, ˈnyu- /
Microbiology

noun

the central region in a prokaryotic cell, as a bacterium, that contains the chromosomes and that has no surrounding membrane.

adjective

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. 2019

Medicine definitions for nucleoid

nucleoid

[ nōōklē-oid′ ]

n.

nucleus
nuclear inclusion body

adj.

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