Satisfied with oneself, especially over-satisfied; smug; slightly arrogant.

Induction in a circuit caused by changes in the circuit itself.

(physics) Of an subatomic particle that is identical to its antiparticle; includes all gauge bosons except the charged W-boson and quarks.

The ability to control one's desires and impulses; willpower.

To control oneself or itself.

Alternative spelling of self-defense

The state, quality, or condition of being self-centered; concern only for oneself

Of a person, having achieved success by one's own efforts, with little to no support from family members and others. / Of a thing, made by oneself instead of bought or taken over.

Obviously true, and requiring no proof, argument or explanation.

The means of defending oneself from physical attack.