biological

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biological

 [bi″o-loj´ĭ-k'l]
1. pertaining to biology.
2. a medicinal preparation made from living organisms and their products, such as a serum or vaccine.
biological clock the physiologic mechanism that governs the rhythmic occurrence of certain biochemical, physiologic, and behavioral phenomena in living organisms. See also biological rhythms.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

biological

(bī'ō-loj'i-kal),
A diagnosic, pregentive, or therapeutic preparation derived or obtained from living organisms and their product, for example, serum, vaccine, antigen, antitoxin.
Farlex Partner Medical Dictionary © Farlex 2012

biological

(bī′ə-lŏj′ĭ-kəl) also

biologic

(-lŏj′ĭk)
adj.
1. Of, relating to, caused by, or affecting life or living organisms: biological processes such as growth and digestion.
2. Having to do with biology.
3. Related by genetic lineage: the child's biological parents; his biological sister.
4. Being male or female by having the chromosomes for that sex: a biological female.
5. Of or relating to biological weapons: biological warfare.
n.
A biologic.

bi′o·log′i·cal·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

biological

adjective Referring to biology; biologic.
 
noun Biologic. Any of a number of FDA-regulated agents—e.g., antitoxins, antisera, vaccines and blood plasma products—prepared from donor pools or obtained directly from various living organisms, often mammals. They are not amenable to the chemical or physical standardisation steps required of pharmaceuticals; they are impure chemically and safety cannot be assumed.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

biological

adjective Referring to biology noun Therapeutics Biologic Any of a number of FDA-regulated agents–eg antitoxins, antisera, vaccines, and blood plasma products prepared from donor pools or obtained directly from various living organisms–often mammals; they are not amenable to the chemical or physical standardization steps required of pharmaceuticals; they are impure chemically; safety cannot be assumed. See Antisera, Antitoxins, Vaccines.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

bi·o·log·i·cal

(bī'ŏ-loj'i-kăl)
A compound or medicine derived from living products, rather than chemicals (e.g., serum, antivenin).
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

bi·o·log·ic

, biological (bī'ŏ-loj'ik, -i-kăl)
Relating to biology.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Therefore, the aim of this study is to construct a biological filter made from polyethylene micro-bead as the filter medium and to analyze its effectiveness in removing waste as well as in converting the toxic organic matter into stable substances.
It can be used to replace the twin requirement of a mechanical filter and biological filter. The re-circulating and backwash system proposed in this study could save the water loss during backwash.
An evaluation of commercially available biological filters for recirculating aquaculture systems.
Effect of particulate organic carbon on heterotrophic bacterial populations and nitrification efficiency in biological filters. Aquacult.
The pool's mechanical filter should be converted to (or supplemented with) a biological filter.
Each aquarium had an air-water-lift type water recirculation system (0.43 L [min.sup.-1]) with percolating biological filter (2.5 L), which filter bed was of crushed shell and gravel, in the same proportions (Fig.
The biological filter is the most effective method of removing toxins from pond water.
The main goal of this investigation was to quantify the removal of chlorinated phenols and benzenes under conditions that simulate a biological filter used for drinking water treatment.