(mineralogy) A hexagonal-dihexagonal dipyramidal mineral containing calcium, manganese, oxygen, potassium, silicon, sodium, and zinc.

(ethics) The study of people's beliefs about morality, in contrast to normative ethics and metaethics.

To cause to become distended. / (intransitive, veterinary medicine) To get an overdistended rumen, talking of a ruminant. / To fill soft substance with gas, water, etc.; to cause to swell.

(colloquial, often used in titles) Intended for a lay audience, simplified.