n. 1. (Arch.) The protecting of a joint, as between roof and parapet wall, with mortar, or cement, where flashing is employed in better work. [ 1913 Webster ]
2. The material of which fillets are made; also, fillets, collectively. [ 1913 Webster ]
[かんのんびらき, kannonbiraki] (n) (1) double doors opening from the centre; (adj-no) (2) double-opening from the centre (e.g. doors, casement windows, etc.); (n) (3) method of filleting fish, chicken, etc. with a central cut and peeling back the flesh