square metre

• square meter (US)

square metre (plural square metres)

1. (British spelling) A standard unit of area equal to the area of a square whose sides are one metre long. Symbol: m²
   • 2013 May 10, Audrey Garric, “Urban canopies let nature bloom”, in The Guardian Weekly‎, volume 188, number 22, page 30:

     As towns continue to grow, replanting vegetation has become a form of urban utopia and green roofs are spreading fast. Last year 1m square metres of plant-covered roofing was built in France, as much as in the US, and 10 times more than in Germany, the pioneer in this field.

• m² (symbol)

• square meter