Index of English words, starting with "ru"

(1) - Rutaceous (a.) Of or pertaining to plants of a natural order (Rutaceae) of which the rue is the type, and which includes also the orange, lemon, dittany, and buchu.

(1) - Ruth (v.) That which causes pity or compassion; misery; distress; a pitiful sight.
(2) - Ruth (v.) Sorrow for the misery of another; pity; tenderness.

(1) - Ruthenic (a.) Pertaining to, or containing, ruthenium; specifically, designating those compounds in which it has a higher valence as contrasted with ruthenious compounds.

(1) - Ruthenious (a.) Pertaining to, or containing, ruthenium; specifically, designating those compounds in which it has a lower valence as contrasted with ruthenic compounds.

(1) - Ruthenium (n.) A rare element of the light platinum group, found associated with platinum ores, and isolated as a hard, brittle steel-gray metal which is very infusible. Symbol Ru. Atomic weight 103.5. Specific gravity 12.26. See Platinum metals, under Platinum.