noun
galley tray
In printing, a long tray used to hold composed type before it is made into pages.
活字をゲラに並べる。
Arrange the type in the galley tray.
noun
Abbreviation of ゲラ刷り. A proof taken from type assembled in a galley, used for checking before final page layout.
See also: ゲラ刷り
著者がゲラをチェックする。
The author checks the galley proof.