(medicine) The remaining capacity of an organ or body part to fulfil its physiological activity; (especially) in the context of disease, ageing, or impairment.

(computing, database normalization) A constraint between two sets of attributes in a relation.

plural of functional requirement

A beverage with added functionality or ingredients and consumed for its supposed health benefits.

plural of functional beverage

(biology) A reproductive strategy in some amphibians wherein the male will inseminate a fresh newly-dead female corpse, fertilizing the still viable eggs, and then squeezing the corpse to eject the newly fertilized eggs into the water.

plural of functional root

(philosophy) A form of functionalism (philosophical paradigm of mind) based on the rejection of behaviorist theories in psychology and their replacement with empirical cognitive models of the mind.

Bottled water with added vitamins, minerals, etc., sold as a health drink.

plural of functional water