Noun: square millimetre
Usage: Brit, Cdn (US: square millimeter)
Usage: Brit, Cdn (US: square millimeter)
- A unit of area measurement equivalent to 1 millimetre in length multiplied by 1 millimetre in width
"The microscopic organism's size was measured in square millimetres";
- square millimeter [US]
Derived forms: square millimetres
Type of: area unit, square measure
Part of: square centimeter [US], square centimetre [Brit, Cdn]
Encyclopedia: Square millimetre