theobromine

n. a methylxanthine alkaloid that occurs naturally in the seeds of Theobroma cacao, the cocoa plant. Theobromine is structurally similar to caffeine in coffee and theophylline in tea but has less pharmacological potency than either of these methylxanthines.

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Psychology term of the day

February 23rd 2025

inbreeding

n. the mating of individuals that are closely related. Inbreeding increases the risk of perpetuating certain genetic defects in the family, as in consanguineous marriages. Inbreeding within small populations, such as geographically isolated populations, leads to increased frequency of particular mutations within such groups. This fact has been used to demonstrate the founder effect for certain cancers and other disorders. Inbreeding studies have contributed to efforts to identify and test for mutations predisposing to disease in some groups of people. Compare outbreeding.