in vitro

referring to biological conditions or processes that occur or are made to occur outside of a living body, usually in a laboratory test tube; an example is in vitro fertilization. Compare ex vivo; in vivo. [Latin, literally: “in glass”]

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Psychology term of the day

January 3rd 2025

Darwinian fitness

the relative success of a particular organism or genotype in producing viable offspring, which is determined by natural selection. [Charles Darwin]