hectare

n. unit of land measure equal to 10, 000 square meters

A hectare (symbol ha, pronounced ) is a unit of area equal to 10,000 square metres, or one square hectometre, and commonly used for measuring land area. A 100 m square is one ha. Its base unit, the are, was defined by older forms of the metric system, but neither it nor the hectare is part of the modern metric system. The Comité International des Poids et Mesures classifies the hectare as a unit that, although it is not part of the International System of Units, is expected to continue in use indefinitely, having an exact definition in terms of SI base units.
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Noun
1. (abbreviated `ha') a unit of surface area equal to 100 ares (or 10,000 square meters)
(hypernym) area unit, square measure
(part-meronym) are, ar

n. hectare, unit of land measure equal to 10

n. hectare, unit of land measure equal to 10, 000 square meters