geotropism


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ge·ot·ro·pism

 (jē-ŏt′rə-pĭz′əm)
ge′o·tro′pic (jē′ə-trō′pĭk) adj.

geotropism

(ˌdʒiːəʊˈtrəʊpɪzəm)
n
(Botany) the response of a plant part to the stimulus of gravity. Plant stems, which grow upwards irrespective of the position in which they are placed, show negative geotropism
geotropic adj
ˌgeoˈtropically adv

ge•ot•ro•pism

(dʒiˈɒ trəˌpɪz əm)

n.
oriented movement or growth of an organism with respect to the force of gravity.
[1870–75]

ge·ot·ro·pism

(jē-ŏt′rə-pĭz′əm)
The growth of an organism in response to gravity. The downward growth of plant roots is an example of geotropism.

geotropic (jē′ə-trō′pĭk, jē′ə-trŏp′ĭk) adjective

geotropism

Botany. the response of a plant to the force of gravity. — geotropic, adj.
See also: Gravity
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.geotropism - an orienting response to gravity
tropism - an involuntary orienting response; positive or negative reaction to a stimulus source
Translations

geotropism

[dʒɪˈɒtrəˌpɪzm] ngeotropismo
References in periodicals archive ?
Auxin is the first plant hormone studied and it has been correlated with several developmental processes like root initiation, apical dominance, plant growth, geotropism and phototropism and fruit development (Paciorek & Friml, 2006).
The instance, Allopathic, geotropism of root and the aerial growth of foot stalk, flowering and winter sleeping of plant and the germination of seed at pure determine time, hunter sing the insects by sarcophagi plants, coexistence with another creatures example, mushroom and bacterias example, the Azoth stabilizer bacteria and the power to contrast with plant illness, contrast with environment tensions example, dryness, cold, and give the resistor mechanism in contrast theirs and most important all, product of metabolite (substance) in amount of human's need from this substance as plant drug, they utilization.
The detector was set up for a 4 week period at the Farlow Herbarium at Harvard University, where I was a research affiliate at the time, conducting work at the Arnold Arboretum, studying the negative geotropism of a heavy vine, Aristolochia macrophylla.