a chamber containing the air supply for the reeds or pipes of an organ.
Origin of windchest
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for windchest
Historical Examples of windchest
These handles, when turned, open ventholes from the windchest into the channels.
When the windchest has received the air, these valves will stop up the openings, and prevent the wind from coming back again.