The designation of the extent of mixer action employed in combining the ingredients for concrete or mortar; for stationary mixers: […]

Said of rock having no crystal structure.

A winged cherub.

A chemical used as a refrigerant, esp. in large low-temperature refrigeration systems (as in ice skating rinks) because of its

An instrument for measuring the rate of flow of electricity, usually expressed in amperes.

Any plastic made of compounds derived from ammonia.