vector quantity
Physics and mathematics term for a quantity that has both magnitude and direction, such as velocity or force. Contrasts with スカラー量 (scalar quantity).
Velocity is a vector quantity, while speed is a scalar quantity.
Force is also one of the vector quantities.
Compound of ベクトル (from English 'vector', ultimately from Latin 'vector' meaning 'carrier') and 量 (りょう, 'quantity').