Meaning of increaser

in•creas•er

Pronunciation: (in-krē'sur), [key]
— n.
  1. a person or thing that increases.
  2. (in plumbing) a coupling increasing in diameter at one end. Cf. reducer (def. 3).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.