Heliotrope



[hee-lee-uh-trohp, heel-yuh- or, esp. British, hel-yuh-] /ˈhi li əˌtroʊp, ˈhil yə- or, esp. British, ˈhɛl yə-/

noun
1.
any hairy plant belonging to the genus Heliotropium, of the borage family, as H. arborescens, cultivated for its small, fragrant purple flowers.
2.
any of various other plants, as the valerian or the winter heliotrope.
3.
any plant that turns toward the sun.
4.
a light tint of purple; reddish lavender.
5.
Surveying. an arrangement of mirrors for reflecting sunlight from a distant point to an observation station.
6.
.
/ˈhiːlɪəˌtrəʊp; ˈhɛljə-/
noun
1.
any boraginaceous plant of the genus Heliotropium, esp the South American H. arborescens, cultivated for its small fragrant purple flowers
2.
garden heliotrope, a widely cultivated valerian, Valeriana officinalis, with clusters of small pink, purple, or white flowers
3.
any of various plants that turn towards the sun
4.

5.
an instrument used in geodetic surveying employing the sun’s rays reflected by a mirror as a signal for the sighting of stations over long distances
6.
another name for bloodstone
n.

“plant which turns its flowers and leaves to the sun,” 1620s, from French héliotrope (14c.) and directly from Latin heliotropium, from Greek heliotropion, from helios “sun” (see sol) + tropos “turn” (see trope). The word was applied c.1000-1600 in Latin form to sunflowers and marigolds. Related: Heliotropic.

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  • Heliotropin

    [hee-lee-uh-troh-pin, hee-lee-o-truh-pin] /ˌhi li əˈtroʊ pɪn, ˌhi liˈɒ trə pɪn/ noun 1. . /ˌhiːlɪˈɒtrəpɪn/ noun 1. another term for piperonal

  • Heliotropism

    [hee-lee-o-truh-piz-uh m, hee-lee-uh-troh-piz-uh m] /ˌhi liˈɒ trəˌpɪz əm, ˌhi li əˈtroʊ pɪz əm/ noun 1. heliotropic tendency or growth. /ˌhiːlɪˈɒtrəˌpɪzəm/ noun 1. the growth of plants or plant parts (esp flowers) in response to the stimulus of sunlight, so that they turn to face the sun n. 1854, from heliotrope + -ism. heliotropism (hē’lē-ŏt’rə-pĭz’əm) The […]



  • Heliotype

    [hee-lee-uh-tahyp] /ˈhi li əˌtaɪp/ noun, verb, heliotyped, heliotyping. 1. . /ˈhiːlɪəʊˌtaɪp/ noun 1. Also called heliotypy. a printing process in which an impression is taken in ink from a gelatine surface that has been exposed under a negative and prepared for printing 2. the gelatine plate produced by such a process 3. a print produced […]

  • Heliozoan

    [hee-lee-uh-zoh-uh n] /ˌhi li əˈzoʊ ən/ noun 1. a protozoan of the order Heliozoa, having a spherical body and radiating pseudopods. adjective 2. Also, heliozoic [hee-lee-uh-zoh-ik] /ˌhi li əˈzoʊ ɪk/ (Show IPA). belonging or pertaining to the Heliozoa. /ˌhiːlɪəʊˈzəʊən/ noun 1. any protozoan of the mostly freshwater group Heliozoa, typically having a siliceous shell and […]



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