English Dictionary

SPAD

/ˈspæd/

noun

(rail transport, UK) An instance of a signal passed at danger. / (UK politics, informal) Alternative form of spad (“special advisor in government”)

The SPAD caused a major train accident.

意味（1）

(rail transport, UK) An instance of a signal passed at danger.

意味（2）

(UK politics, informal) Alternative form of spad (“special advisor in government”)

意味（3）

(plant science) A relative measurement of the amount of chlorophyll present in a leaf, based on measurements with a SPAD meter produced by Minolta.

意味（4）

(military) Initialism of self-propelled air defense; a self-propelled anti-aircraft vehicle.