any child conceived rather than adopted by a specified parent, and therefore carrying genes from the parent.
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- Biological control
the control of pests by interference with their ecological status, as by introducing a natural enemy or a pathogen into the environment. Historical Examples The Biotic Associations of Cockroaches Louis M. Roth The Biotic Associations of Cockroaches Louis M. Roth The Biotic Associations of Cockroaches Louis M. Roth The Biotic Associations of Cockroaches Louis M. […]
- Biological engineering
- Biological parent
a parent who has conceived (biological mother) or sired (biological father) rather than adopted a child and whose genes are therefore transmitted to the child.
Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate. Also called biological half-life. Pharmacology. the time required for the activity of a substance taken into the body to lose one half its initial effectiveness. Informal. a brief period during which something flourishes before dying out. […]