notchboard

English

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Etymology

notch +‎ board

Noun

notchboard (plural notchboards)

(carpentry) The board that receives the ends of the steps in a staircase.

Synonyms

(part of staircase): bridgeboard

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “notchboard”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)