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”]

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

March 9th 2025

period

1. the interval of time between the same point in successive cycles, such as sunset to sunset.

2. see frequency.

3. see menstruation.