Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to chlamydial: chlamydial conjunctivitis


n. pl. chla·myd·i·ae (-ē-ē′)
1. Any of various gram-negative, coccoid bacteria of the genus Chlamydia, especially C. psittaci and C. trachomatis, that are pathogenic to humans and other animals, causing infections such as conjunctivitis in cattle and sheep and trachoma, urethritis, and pneumonia in humans.
2. Any of several common, often asymptomatic, sexually transmitted diseases caused by the bacterium Chlamydia trachomatis.

[New Latin, genus name, from Latin chlamys, chlamyd-, mantle (in reference to the reticulate form, resembling a mantle around the host cell's nucleus, that the bacterium assumes within the host's cytoplasm); see chlamys.]

chla·myd′i·al 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.


(Medicine) of or relating to infections caused by bacteria of the genus Chlamydia
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.chlamydial - of or pertaining to the sexually transmitted infection or to the parasite
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This revealed that Lactobacillus Crispatus, another bacteria living inside the vaginal area, was more combative than Lactobacillus Iners in preventing chlamydial infection.
Chlamydiaceae bacteria infect many vertebrate hosts, and previous reports based on polymerase chain reaction (PCR) assays and serologic assays that are prone to cross-reaction among chlamydial organisms have been used to describe the prevalence of either DNA fragments or antibodies to Chlamydia species in wild raptorial populations.
Sexually transmitted Chlamydia trachomatis infection also has notorious effects on reproduction, often asymptomatic and recurrent; thus, chlamydial infection diseases remain important public health concern over its prevention and control.
Chlamydia, an obligated intracellular bacterium, can cause various human diseases by the two chlamydial species, Chlamydia trachomatis and Chlamydia pneumoniae.
In females, up to 40% of chlamydial cervicitis may ascend to the endometrium and is responsible for the etiology of endometritis and salpingitis [4].
The presence of Gram-Negative Intracellular Diplococci (GNID) on urethral smear is indicative of gonorrhoea infection, which is frequently accompanied by chlamydial infection.
The latest award continues funding of the center, with individual projects on cancer, Lyme disease, pneumonic plague and chlamydial infection.
Whole chlamydial infectious cycle is highly dependent on host cell energy homeostasis and metabolism, since chlamydial species lack crucial enzymes for ATP biosynthesis and are defective in biosynthesis of lipids and many other organic substances [6].
Both animal and human studies have established a vital role for T cell-mediated immunity, predominantly that of IFN-[gamma]-producing [CD4.sup.+] T cells, and the complementary role of humoral immunity in host resistance to chlamydial infection [4, 5].
There were 15,000 diagnoses of chlamydial infection reported to HPS, a decrease of eight per cent on the 2014 figure and the lowest annual total over the last 10 years.
Genital chlamydial infections are usually asymptomatic, and screening is necessary to identify most infections.