DICT.TW Dictionary Taiwan
3.21.248.47
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Pol·y·zon·al a.  Consisting of many zones or rings.
 Polyzonal lens Opt., a lens made up of pieces arranged zones or rings, -- used in the lanterns of lighthouses.
 ◄ ►