(trademark) a form of thyristor

(officialese, law) A drug or chemical whose use, possession, manufacture, or sale is regulated or banned by the government.

manipulated or regulated directly by the mind.

(systems theory) That part of a control system that dynamically updates the parameters of an optimizing control function or a direct control function

(computing) A key on a personal computer or terminal keyboard used in combination to modify the function of other keys; normally labelled "Ctrl"

A card game in which four players, forming two partnerships, first bid then play by taking tricks.

Any control, either formal or informal, that is exerted by a group, especially by one's peers

(idiomatic) Being taken care of or being addressed. / (literally) Being actively controlled, or able to be actively controlled in its current state.

(anatomy) The tensioning of a muscle as it is being lengthened

Capable of contracting, or of being contracted.