A building fitted for proving the barrels of firearms.

plural of proof house

plural of press wheel

A wheel affixed to a press drill (a seed drill) to compact soil in the seeded furrows.

The Indomalayan butterfly Rohana parisatis, family Nymphalidae. / A black form of the cicada Psaltoda plaga, of eastern Australia.

(biochemistry) A transmembrane protein that assists in the movement of substances across a membrane

Public praise or approval, especially in newspapers, television, radio, etc.

(US, education) A college professor who is employed part-time or for a limited time, is junior to a full professor, or is otherwise not eligible for tenure.

A proof designed to monitor the progress of printing, similar to an artist's proof.

(mathematics) The relation of three quantities in harmonic progression, with the second being a harmonic mean between the first and third, as in the three numbers 2, 3, and 6.