(calculus) The calculus that generalizes summation to find areas, masses, volumes, sums, and totals of quantities described by continuously varying functions.

Having or showing interest. / (now rare) Motivated by considerations of self-interest; self-serving. / Owning a share of a company.

simple past tense and past participle of interest

Transitional. / Temporary.

A transitional or temporary period between other events.

(chiefly uncountable) Capacity of mind, especially to understand principles, truths, facts or meanings, acquire knowledge, and apply it to practice; the ability to comprehend and learn.

(politics) The intellectual elite of a society, particularly in Marxist doctrine.

The human mind model, in that human intelligence as represented by the brain/mind model will tend to change (adapt) toward positive modes of survival.

That which intensifies. / (linguistics) A word or particle that heightens the intensity of meaning of a term. / (photography) A chemical agent used to intensify the lights or shadows of a photograph.

Incapable of being perceived by the senses; incorporeal.