sinistrorse


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Related to sinistrorse: dextrose

sin·is·trorse

 (sĭn′ĭ-strôrs′)
adj.
Growing upward in a spiral that turns from right to left: a sinistrorse vine.

[Latin sinistrōrsus, turned toward the left, contraction of *sinistrōversus : sinistrō, toward the left, from ablative of sinister, left + versus, past participle of vertere, to turn; see wer- in Indo-European roots.]

sinistrorse

(ˈsɪnɪˌstrɔːs; ˌsɪnɪˈstrɔːs)
adj
(Botany) (of some climbing plants) growing upwards in a spiral from right to left, or clockwise. Compare dextrorse
[C19: from Latin sinistrōrsus turned towards the left, from sinister on the left + vertere to turn]
ˌsinisˈtrorsal adj
ˈsinisˌtrorsely adv

sin•is•trorse

(ˈsɪn əˌstrɔrs, sɪˈnɪs trɔrs, ˌsɪn əˈstrɔrs)

adj.
(of a climbing plant) twining counterclockwise from the base.
[1855–60; < Latin sinistrōrsus literally, turned leftward. See sinister, versus]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.sinistrorse - spiraling upward from right to left; "sinistrorse vines"
phytology, botany - the branch of biology that studies plants
sinistral - of or on the left; "a sinistral gastropod shell with the apex upward has its opening on the left when facing the observer"; "a sinistral flatfish lies with the left eye uppermost"
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References in periodicals archive ?
Petals usually contorted in bud, either dextrorse or sinistrorse, more rarely valvate.
Anthers free from style head; corolla-lobe aestivation in bud typically sinistrorse (overlapping to the left), rarely dextrorse; fruit dehiscent or indehiscent, syncarpous or apocarpous, a berry, drupe, follicle, or capsule; seeds naked, with wings, or arils, but almost never with coma Rauvolfioideae at one end 2.
Calycine colleters absent; corolla salveriform or somewhat funnelform in Haplophyton; corolla-lobe aestivation either sinistrorse or dextrorse; corona absent; style head with or without a basal collar; ovary apocarpous or rarely syncarpous; disc absent, adnate, or inconspicuous.