heliotropism
Word Rarity
Very rare
Frequency: 0.00 in modern English
19
Scrabble Score
12
Letters
2
Syllables
10
Unique Chars
Meaning
noun
The property of some plants of turning under the influence of light; either positively (towards the light) or negatively (away from the light).
Countable; Uncountable
Example Sentences
- "As soon as the faintest ray of light reaches a seedling, heliotropism will guide it through any crack in the soil, or through an entangled mass of overlying vegetation; […]"
- "A field of young sunflowers will slowly rotate from east to west during the course of a sunny day, each leaf seeking out as much sunlight as possible as the sun moves across the sky through an adaptation called heliotropism."
Etymology
Etymology tree Proto-Indo-European *sóh₂wl̥ Proto-Indo-European *sh₂wél(i)yos Proto-Hellenic *hāwélios Ancient Greek ἥλῐος (hḗlĭos) English helio- English -tropism English heliotropism From helio- + -tropism.