simple past tense and past participle of pinion

present participle of pinion

A pair of gears, consisting of a circular pinion that engages with the teeth of a flat bar, that converts rotational into linear motion; used in the steering mechanism of cars, and in some railways.

comparative form of piny: more piny

superlative form of piny: most piny

(biochemistry) A protein associated with desmosome / (gene) PNN, the pinin gene, which encodes for the pinin protein

Having the shape of or resembling a pine cone.

Any fossil wood which exhibits traces of having belonged to the pine family.

(mineralogy) A compact granular cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, such as iolite.

While pining; sorrowfully.