D defs.my
Entry 2 senses Webster, 1913

Plateau

/plăt-ō'/ · Pla·teau · IPA /plæˈtoʊ/
01 n. A flat surface; especially, a broad, level, elevated area of land; a table-land.
pl. Plateaux ((F. �; E. �))
  1. 1.
    A flat surface; especially, a broad, level, elevated area of land; a table-land.
  2. 2.
    An ornamental dish for the table; a tray or salver.