WordWeight : Weighing the Words

Pronunciation : Ceil"ing
Part of Speech : n.
Etymology : [See Cell, v. t.]
Definition : 1. (Arch.) (a) The inside lining of a room overhead; the under side of the floor above; the upper surface opposite to the floor. (b) The lining or finishing of any wall or other surface, with plaster, thin boards, etc.; also, the work when done.

2. (Naut.)

Defn: The inner planking of a vessel. Camp ceiling. See under Camp. -- Ceiling boards, Thin narrow boards used to ceil with.
Source : Webster's Unabridged Dictionary, 1913