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Heliotropin

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• 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 […]

• Helipad

  [hel-uh-pad, hee-luh-] /ˈhɛl əˌpæd, ˈhi lə-/ noun 1. a takeoff and landing area for helicopters, usually without commercial facilities. /ˈhɛlɪˌpæd/ noun 1. a place for helicopters to land and take off

• Heliport

  [hel-uh-pawrt, -pohrt, hee-luh-] /ˈhɛl əˌpɔrt, -ˌpoʊrt, ˈhi lə-/ noun 1. a landing place for helicopters, often on the roof of a building or in some other limited area. /ˈhɛlɪˌpɔːt/ noun 1. an airport for helicopters n. 1948, from helicopter + second element abstracted from airport.

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