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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 ?
The company stated that MYCOFAST US is a rapid system to detect, enumerate and identify genital Mycoplasma hominis and Ureaplasma urealyticum.
In this work, we focused on some of sexually transmitted pathogens: Gardnerella vaginalis (GV), Trichomonas vaginalis (TV), Mycoplasma hominis (MH), Mycoplasma genitalium (MG), Ureaplasma urealyticum (UU), and Ureaplasma parvum (UP).
Percentage Pathogen (n) (%) Escherichia coli 27 12.1 Enterococcus faecalis 18 8.1 Staphylococcus epidermidis 15 6.7 Culture Staphylococcus haemolyticus 10 4.5 (84 patients) Staphylococcus aureus 5 2.2 Streptococcus agalactiae 4 1.8 Pseudomonas 3 1.3 Trichomonas vaginalis 2 0.9 Chlamydia trachomatis 24 10.8 PCR Ureaplasma urealyticum 95 42.6 (139 patients) Mycoplasma genitalium 6 2.7 Mycoplasma hominis 14 6.3 PCR: polymerase chain reaction
and Mycoplasma hominis (by culture) in urine were negative.
Since its founding in 2014, SAB Biotherapeutics has developed immunotherapies against more than a dozen targets, achieved 100% efficacy in pre-clinical testing and completed Phase 1 trials for treatments for emerging infectious diseases, including MERS-CoV and antibiotic resistant bacteria Mycoplasma hominis, a first in human trial.
Epidemiological investigation and antimicrobial susceptibility an alysis of ureaplasma species and Mycoplasma hominis in outpatients with genital manifestations.
(3,4) Mycoplasma hominis was thought to be a cause of non-gonococcal urethritis (NGU), but by the early 1960s it was considered to be less of an etiologic factor.
When normal flora is disrupted, other bacteria such as Gardnerella vaginalis, Mycoplasma hominis, and Prevotella bacteroides, to name just a few, can take over, resulting in an unpleasant odor, a watery discharge, and a lower pH.
Possible reasons for culture-negative pyelonephritis include antibiotic pretreatment, difficult to culture atypical microorganisms such as Ureaplasma urealyricum or Mycoplasma hominis, bacteriuria below the defined cutoffs of clinically significant bacteriuria, or infection confined to the renal parenchyma as result of hematogenous seeding [8].
Mycoplasma hominis is one of the microorganisms most commonly associated with preterm labor and it has been isolated in 40% of amniotic fluids showing infection [8].

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