(category theory) The category c is called a prestack over a category C with a Grothendieck topology if it is fibered over C and for any object U of C and objects x, y of c with image U, the functor from objects over U to sets taking F:V→U to Hom(F*x,F*y) is a sheaf.

plural of prestack

A town in Powys, Wales (and formerly the county town of the ancient county of Radnorshire), situated on the south bank of the River Lugg, on the border with England.

(cytology) staining prior to some other operation.

Prior to the formation of a stenosis

Third-person singular simple present indicative form of presterilize

To sterilize in advance.

present participle of presterilize

simple past tense and past participle of presterilize

(mediaeval folklore) A legendary Christian king of a distant Eastern or African kingdom.