Webster's Revised Unabridged Dictionary · 1913

Leonid

Leonid (lē"o*nid) , noun

[From Leo: compare French léonides, pl.]

(Astronomy) One of the shooting stars which constitute the star shower that recurs near the fourteenth of November at intervals of about thirty-three years; -- so called because these shooting stars appear on the heavens to move in lines directed from the constellation Leo.