plancher noun. ['plɑ:nʃǝ, in sense 4 plʃe (pl. same)] ME.
[French (Old French planchier) = planking, floor, from planche: see PLANK noun, -ER².]
1. a. A floor. Formerly also, a platform of planks or boards. obsolete exc. dial. ME.
b. An upper storey; a wooden inner roof, a ceiling, etc. E16-E17.

2. A wooden plank, a board; planking, boarding. obsolete exc. dial. LME.

3. Architecture. = PLANCIER. M16-E18.

4. In France, the minimum of Treasury bills which banks are obliged to hold. Cf. FLOOR noun 1b. M20.

[TahlilGaran] English Dictionary ▲