(accounting) the normal settlement day when the transaction is carried out as soon as practical, i.e. "on the spot".

(medicine) A spot on the skin that is characteristic of the plague or of a similar disease. / (figuratively) A plague, a scourge, a calamity (someone that is a persistent source of trouble).

plural of plague spot

present participle of hit the spot

A small patch of a vehicle tyre that has been flattened by abrasion with the road surface, so that the tyre is no longer smoothly circular at that point; usually caused by the wheel locking under heavy braking.

To cause a flat spot on (a vehicle tyre), usually by locking the wheels under heaving braking.

Synonym of Arago spot

Synonym of Arago spot

(optics) A bright point that appears at the centre of a circular object's shadow due to Fresnel diffraction.

plural of Fresnel spot