'Hectare' definitions:
Definition of 'hectare'
From: WordNet
noun
(abbreviated `ha') a unit of surface area equal to 100 ares (or 10,000 square meters)
Definition of 'Hectare'
From: GCIDE
- Hectare \Hec"tare`\, n. [F., fr. Gr. ? hundred + F. are an are.] A measure of area, or superficies, containing a hundred ares, or 10,000 square meters, and equivalent to 2.471 acres. [1913 Webster]