n.
Pronunciation: ' wo ̇ -t ə r- ˌ märk, ' wä-
Function: noun
Date: 1640
1 : a mark indicating the height to which water has risen
2 : a marking in paper resulting from differences in thickness usually produced by pressure of a projecting design in the mold or on a processing roll and visible when the paper is held up to the light also : the design of or the metal pattern producing the marking