opportunistic


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Related to opportunistic: Opportunistic disease

opportunistic

 [op″or-too-nis´tik]
1. denoting a microorganism that does not ordinarily cause disease but becomes pathogenic under certain circumstances.
2. denoting a disease or infection caused by such an organism.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

op·por·tu·nis·tic

(op'ŏr-tū-nis'tik),
1. Denoting an organism capable of causing disease only in a host with lowered resistance, for example, by other diseases or by drugs.
2. Denoting a disease caused by such an organism.
Farlex Partner Medical Dictionary © Farlex 2012

opportunistic

adjective Relating to a microorganism—or the disease/infection it invokes—that is part of the normal non-pathogenic flora, which causes disease under certain conditions (e.g., by a compromised host immune defence).
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

opportunistic

Medtalk adjective Relating to a microorganism that is part of the normal nonpathogenic flora, which causes disease given the opportunity–eg, by a compromised host immune defense
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

op·por·tu·nis·tic

(op'ŏr-tū-nis'tik)
1. Denoting an organism capable of causing disease only in a host with lowered resistance; e.g., by other diseases or by drugs.
2. Denoting a disease caused by such an organism.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

opportunistic

  1. (of microorganisms) capable of causing disease in some circumstances but which under normal conditions are harmless.
  2. (of any species) exploiting new habitats.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Opportunistic

Causing disease only under certain conditions, as when a person is already sick or has a weak immune system.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Co-op Insurance said opportunistic crimes can happen when windows and doors are left open as temperatures increase, or when items, such as bikes or gardening equipment, are left outside the property.
He also described the burglary as "opportunistic" rather than planned or premeditated.
The open relationships and changeable membership in the cluster may encourage opportunistic behavior [30].
The scheduling time comparison takes place on existing Multicast/Broadcast Service (MBS) Module, Opportunistic Routing, Multi-Constrained Anypath Routing (MAP) and On-Demand Multicast Routing Protocol(ODMRP).
Since inception, the Company refocused its efforts on non-performing loan and opportunistic transactions sourced directly from financial institutions.
We adopt Cohen et al.'s (2012) methodology in this paper to identify routine and opportunistic insider purchases and sales.
Kingdom Holding Company (KHC), chaired by Prince Alwaleed bin Talal, announced its investment in the Rizvi Opportunistic Equity Fund III.
Being one of the fortunate people who have received an organ transplant (kidney) it more than crossed my mind that opportunistic infection was a real possibility when I had my transplant a few years back.
Summary: Veteran broadcaster Stuart Hall has been described as an "opportunistic predator" by Nazir Afzal, chief crown prosecutor for the North West.
[3] It has been observed that the clinical course of HIV infection varies considerably from patient to patient and the spectrum of opportunistic infections also varies depending on the geographic regions.