plural of light spectrum

Blocking someone's light, especially when someone is attempting to see a particular thing.

A pale blue colour: sky blue or similar. / (UK, rowing) A member of the Cambridge rowing team.

plural of light wave

(physics) An electromagnetic wave of light. / (physics, obsolete) A wave of the luminiferous ether.

(astronomy, physics) A unit of length equal to the distance light travels in one hour

(chiefly in the plural) One of the electric lights used at Christmas to decorate a tree, house, etc.

(astronomy) A phenomenon that produces an apparent motion of celestial objects about their true positions, dependent on the velocity of the observer.

plural of light-weight

Alternative form of lightweight