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Any of various extremely small bacteria of the genus Mycoplasma that lack cell walls, are usually nonmotile, and are often pathogenic or parasitic in mammals.

[New Latin genus name : myco- + plasma.]

my′co·plas′mal adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Microbiology) any prokaryotic microorganism of the genus Mycoplasma, some species of which cause disease (mycoplasmosis) in animals and humans
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌmaɪ koʊˈplæz mə)

n., pl. -mas.
any of a group of very small microorganisms without cell walls, of the prokaryote class Mollicutes, that are a common cause of pneumonia and urinary tract infections.
[1955–60; < New Latin (1929), a genus; see myco-, plasma]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mycoplasma - any of a group of small parasitic bacteria that lack cell walls and can survive without oxygen; can cause pneumonia and urinary tract infection
eubacteria, eubacterium, true bacteria - a large group of bacteria having rigid cell walls; motile types have flagella
genus Mycoplasma - type and sole genus of the family Mycoplasmataceae
pleuropneumonialike organism, PPLO - a mycoplasma resistant to antibiotics that causes a kind of pneumonia in humans
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
La categoria A (esfera), que en su mayoria agrupa algas mucilaginosas como Asterococcus sp.
State Akwaibom Rivers Stations AB RB RK CLASS CHLOROPHYCEAE Asterococcus sp -- -- -- Aulacoseira granulata var.
Aphanocapsa delicatissima West & West; Asterococcus sp.; * Coelosphaerium kuetzingianum Nageli ; Chrococcus turgidus (Kutz.) Nag; Eucapsis sp.; Microcvstis aeruginosa (Kutzing) Kutzing; * Snowella lacustris (Chodat) Komarek Total Biovolume 85.3 [mm.sup.3][L.sup.-1] Phytoplankton Diversity 3.99 FHIP= First Hydrodynamic Instability Period; HSP= Hydrodynamic Stability Period; SHIP= Second Hydrodynamic Instability Period; S-Surface; V-Volume).