pvac

As an initialism pvac

is (also pva ) polyvinyl acetate.

As a noun null is

zero, nil; the cardinal number before einn.

As a noun initialism

is a term formed from the initial letter or letters of several words or parts of words, but which is itself pronounced letter by letter.

As an initialism pvac is

(also pva ) polyvinyl acetate.

As a noun taxonomy

is the science or the technique used to make a classification.

As an initialism pvac is

(also pva ) polyvinyl acetate.