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geotropism British & World English

The growth of the parts of plants in response to the force of gravity. The upward growth of plant shoots is an instance of negative geotropism; the downward growth of roots is positive geotropism

positive geotropism British & World English

The tendency of roots to grow downwards

negative geotropism British & World English

The tendency of plant stems and other parts to grow upwards

negative geotropism in geotropism British & World English

The growth of the parts of plants in response to the force of gravity. The upward growth of plant shoots is an instance of negative geotropism; the downward growth of roots is positive geotropism

positive geotropism in geotropism British & World English

The growth of the parts of plants in response to the force of gravity. The upward growth of plant shoots is an instance of negative geotropism; the downward growth of roots is positive geotropism