mass

A quantity of matter cohering together so as to make one body, or an aggregation of particles or things which collectively make one body or quantity, usually of considerable size.

(obsolete) Precious metal, especially gold or silver.

(physics) The quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter. It is measured in kilograms in the SI system of measurement.

(pharmacology) A medicinal substance made into a cohesive, homogeneous lump, of consistency suitable for making pills; as, blue mass.

(medicine) A palpable or visible abnormal globular structure; a tumor.

(bodybuilding) Excess body weight, especially in the form of muscle hypertrophy.

(proscribed) Synonym of weight

Bulk; magnitude; body; size.

The principal part; the main body.

A large body of individuals, especially persons.

(in the plural) The lower classes of persons.