Heliotrope
1. An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.
2. (Science: botany) a plant of the genus Heliotropium; called also turnsole and girasole. H. Peruvianum is the commonly cultivated species with fragrant flowers.
3. An instrument for making signals to an observer at a distance, by means of the suns rays thrown from a mirror.
4. (Science: chemical) see bloodstone . Heliotrope purple, a grayish purple colour.
Origin: f. Heliotrope, L. Heliotropium, gr.; the sun – to turn, turn. See heliacal, Trope.
Dictionary > Heliotrope
You will also like...

Regulation of Organic Metabolism, Growth and Energy Balance
The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

Lotic Communities & Algae
Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

Control of Growth & Development
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

Genetic Mutations
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

Fruits, Flowers, and Seeds
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..

Control of Body Movement
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..