2 definitions
for blotting paper
From The Collaborative International Dictionary of English v.0.48 :
Blotting paper \Blot"ting pa`per\ (p[=a]`p[~e]r).
A kind of thick, bibulous, unsized paper, used to absorb
superfluous ink from a freshly written manuscript, and thus
prevent blots.
[1913 Webster]
From WordNet (r) 2.0 :
blotting paper
n : absorbent paper used to dry ink [syn: blotter]