The Collaborative International Dictionary
Dextrorsal \Dex*tror"sal\, Dextrorse \Dex"trorse`\, a. [L. dextrorsum, contr. fr. dextrovorsum, dextroversum, toward the right side; dexter right + versus, vorsus, p. p. of vertere, vortere, to turn.] (Botany) Turning from the left to the right, in the ascending line, as in the spiral inclination of the stem of the common morning-glory; as, dextrorse vines.
Note: At present scientists predicate dextrorse or sinistrorse quality of the plant regarded objectively; formerly the plant was regarded subjectively, and what is now called dextrorse was then considered sinistrorse.
WordNet
adj. spiraling upward from left to right; "dextrorse vines" [syn: dextrorse]
Usage examples of "dextrorsal".
Though the bean always insists on a sinistrorsal growth, as B, the hop prefers to climb in a dextrorsal manner, as A.