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biological

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The definition of biological is something that relates to life or living.

(adjective)

An example of biological is water helping the kidneys flush waste and toxins from the body.

Biological is defined as a blood relation.

(adjective)

An example of biological is a mother and her son to whom she gave birth.

See biological in Webster's New World College Dictionary

adjective

of or connected with biology; of plants and animals
of the nature of living matter
used in or produced by practical biology
related genetically rather than by adoption: her biological father

noun

a biological product

Also biologic

Related Forms:

biologically adverb

See biological in American Heritage Dictionary 4

adjective

Of, relating to, caused by, or affecting life or living organisms: biological processes such as growth and digestion.
Having to do with biology.
Related by blood or genetic lineage: the child's biological parents; his biological sister.

noun

A preparation, such as a drug, a vaccine, or an antitoxin, that is synthesized from living organisms or their products and used medically as a diagnostic, preventive, or therapeutic agent.

Related Forms: