— grouter , n.
/growt/ , n.
1. a thin, coarse mortar poured into various narrow cavities, as masonry joints or rock fissures, to fill them and consolidate the adjoining objects into a solid mass.
2. a coat of plaster for finishing a ceiling or interior wall.
3. Usually, grouts . lees; grounds.
4. Archaic.
a. coarse meal or porridge.
b. grouts , groats.
v.t.
5. to fill or consolidate with grout.
6. to use as grout.
[ bef. 1150; ME; OE grut; see GRITS, GROATS, GRIT ]