Heliotrope vs. Heliotropism

Heliotropenoun

(botany) A plant that turns so that it faces the sun.

Heliotropismnoun

The property of some plants of turning under the influence of light; either positively (towards the light) or negatively (away from the light)

Heliotropenoun

(botany) Particularly, a purple-flowered plant of the species Heliotropium arborescens.

Heliotropismnoun

The phenomenon of turning toward the light, seen in many leaves and flowers.

Heliotropenoun

A light purple or violet colour.

Heliotropismnoun

an orienting response to the sun

Heliotropenoun

The fragrance of heliotrope flowers.

Heliotropism

Heliotropism, a form of tropism, is the diurnal or seasonal motion of plant parts (flowers or leaves) in response to the direction of the Sun. The habit of some plants to move in the direction of the Sun, a form of tropism, was already known by the Ancient Greeks.

Heliotropenoun

(mineral) A bloodstone (a variety of quartz).

Heliotropenoun

(surveying) An instrument, employed in triangulation, that uses a mirror to reflect sunlight toward another, very distant, surveyor.

Heliotropeadjective

Light purple or violet.

Heliotropeadjective

Keeping one’s face turned toward the sun.

Heliotropenoun

An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.

Heliotropenoun

A plant of the genus Heliotropium; - called also turnsole and girasole. Heliotropium Peruvianum is the commonly cultivated species with fragrant flowers.

Heliotropenoun

An instrument for making signals to an observer at a distance, by means of the sun's rays thrown from a mirror.

Heliotropenoun

See Bloodstone (a).

Heliotropenoun

green chalcedony with red spots that resemble blood