A small-scale chemical engineering facility designed to research the full-scale production of a product.

Alternative spelling of pitch-dark

A freshwater fish of the genus Esox. / (Canada) Walleye, A species of gamefish, Sander vitreus, native to the Northern U.S. and Canada with pale, reflective eyes. / A wading bird, the dunlin.

Absolutely dark or black; as dark as pitch.

plural of pipe bomb

plural of pine marten

A small grand piano.

Alternative spelling of cowpie

One who plays the piano (to make music); a pianist.

A photograph, printed in a magazine or other publication, of a sexually attractive person (often nude or provocatively dressed), and intended to be removed and pinned up on a wall.