circumnutation means the successive bowing or bending in different directions of the growing tip of the stem of many plants, especially seen in climbing plants.
Why “circumnutation” is a great word
The three-dimensional, helical swaying motion of a plant's growing tip as it explores its surroundings. From the Latin circum- ("around") + nutation, from Latin nūtāre ("to nod"). Unlike nutation, a simple, often axial oscillation, or tropism, a directed growth toward or away from a stimulus, circumnutation is a spontaneous, exploratory searching performed in the absence of any immediate, directional cue. It is the morning glory's tendril sweeping slow circles through empty air; the pea shoot's tip tracing invisible cones of possibility; the ivy stem groping blind for purchase before any wall exists. It is growth itself, embodied as a patient question inscribed upon space.
Etymology
From circum- + nutation.
noun
- The successive bowing or bending in different directions of the growing tip of the stem of many plants, especially seen in climbing plants.e.g.“[T]he increased turgescence of the cells, together with the extensibility of their walls, is the primary cause of the movement of circumnutation.” — 1880, Charles Darwin, assisted by Francis Darwin, “Introduction”, in The Power of Movement in Plants, London: John Murray, […], →OCLC, page 3:
Definitions & examples from Wiktionary (CC BY-SA 3.0).
Words closest in meaning
By meaning, not spelling — each word's AI semantic fingerprint, nearest first.