(linear algebra) Said of a real, square matrix: that the product of it with a column vector on its right side and the transpose of that column vector on its left side is greater or equal to zero, only equaling zero if the vector itself is zero.

The giving of encouragement to a person who exhibits a particular behaviour with the result that such behaviour is repeated.

(electronics) The point in time when a signal's value becomes high.

Overwhelming or definitive proof.

(electrical engineering) The use of the higher voltage level to represent the Boolean value 1 and the lower voltage level to represent the Boolean value 0. For instance: ~5v is equal to logical 1₂, and ~0v is equal to 0₂.

(game theory) Pertaining to a game or situation where overall benefits to all participants can increase.

(dated) Gothic rock.

(biology) The applied science of selecting positive or desirable traits in a species.

(linguistics) The successful use by a language learner of a construct from his/her source language in the target language, such that the resulting utterance in the target language is correct.

Focusing on thoughts of success, as a strategy for achievement.