diageotropism

noun
dia·​geotropism
variants: or diageotropy \ "+ \
plural diageotropisms or diageotropies

Definition of diageotropism

: the tropistic tendency of growing organs (such as branches, rhizomes, or roots) to assume a position with the axis at right angles with the line of gravity

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History and Etymology for diageotropism

dia- + geotropism or geotropy

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