21-letter words containing p, a, l, m, o, i
- spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
- stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
- subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
- thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
- thermal power station — a power station in which heat is converted into electricity