plural of pill mill

(idiomatic) A clandestine operation where a medical worker illicitly offers prescription medication to patients in exchange for bribes.

(intransitive, usually of a group of people) To move or circulate in a confused or disorderly manner within a limited area.

(obsolete) A milled sixpence.

plural of grist mill

(mechanical engineering) A rotary cutting tool typically used in milling machines.

(historical) A simple mill, often powered by animals, which grinds a material (grain, olives, chalk, etc) between a stationary horizontal stone disk and two vertical stone cylinders, in order to produce flour, olive oil, etc.

An airtight glass bulb containing a partial vacuum and a set of vanes, mounted on a spindle, which rotate when exposed to light, providing a quantitative measurement of electromagnetic radiation intensity.

plural of light mill

plural of powder mill