| heliotherapy | The treatment of disease by exposing the body to the sun's rays; the therapeutic use of sunbathing. (12 Dec 1998) |
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| heliotrope | 1. An instrument or machine for showing when the sun arrived at the tropics and equinoctial line. 2. <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 sun's rays thrown from a mirror. 4. <chemical> See Bloodstone . Heliotrope purple, a grayish purple colour. Origin: F. Heliotrope, L. Heliotropium, Gr.; the sun + to turn, turn. See Heliacal, Trope. Source: Websters Dictionary (01 Mar 1998) |
| heliotropic | <botany> Manifesting heliotropism; turning toward the sun. Source: Websters Dictionary (01 Mar 1998) |
| heliotropism | <botany> The phenomenon of turning toward the light, seen in many leaves and flowers. Origin: Helio- + Gr. To turn. Source: Websters Dictionary (01 Mar 1998) |
| heliotypy | A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography. Source: Websters Dictionary (01 Mar 1998) |
| Heliozoa | Order Heliozoida. A group of amoeboid protozoa. They are generally free floating, spherical cells with many straight, slender microtubule supported pseudopods radiating from the cell body like a sunburst. These modified pseudopods are termed axopodia. Genera include Actinophrys and Echinosphaerium. (18 Nov 1997) |
| Heliozoea | A class of protozoans (subphylum Sarcodina) distinguished by stiff radiating axopodia on all sides, usually naked, though some have a skeleton of siliceous scales and spines, but without a central capsule. They are mostly fresh water dwellers, and colonial forms are common. Origin: helio-+ G. Zoon, animal (05 Mar 2000) |
| Helisoma trivolvis | Pulmonate mollusc whose relatively simple nervous sytsem contains large identifiable cells and is consequently, like Hirudo and Aplysia a favorite preparation for studying neural mechanisms at the cellular level and in particular for studying isolated neurons in culture. (18 Nov 1997) |
| helispherical | <mathematics> Helispherical line . The rhomb line in navigation. Alternative term for spiral. Origin: Helix + spheric, spherical. Source: Websters Dictionary (01 Mar 1998) |
| helium | <element> A gas. Certain types of radiation therapy used charged, radioactive particles of helium. (16 Dec 1997) |
| helium speech | The peculiar high-pitched, often unintelligible speech sounds produced when one breathes a mixture of up to 80 per cent helium and 20 per cent oxygen. (05 Mar 2000) |
| helium-3 | The rare stable isotope of helium (1.37 parts per million of ordinary helium); produced by the beta decay of tritium. (05 Mar 2000) |
| helium-4 | The common helium isotope, making up 99.999% of natural helium; it is emitted in the form of alpha rays (which are helium nuclei), from a variety of radionuclides. (05 Mar 2000) |
| helix | <chemistry, molecular biology> A spiral structure in a macromolecule that contains a repeating pattern. (09 Oct 1997) |
| helix (snails) | A genus of chiefly eurasian and african land snails including the principal edible snails as well as several pests of cultivated plants. (12 Dec 1998) |
Synonyms : Proteins, Helminth
Synonyms : Infections, Nematomorpha, Helminthiases, Infection, Nematomorpha, Nematomorpha Infection
Synonyms : Animal Helminthiases, Animal Helminthiasis, Helminthiases, Animal
Synonyms :
Synonyms :
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| helium |
Helium was formed in 1992 by former Autoclave member Mary Timony with Shawn Devlin on drums and Brian Dunton on bass. Their first release was a 7" single of The American Jean in 1993, and then the 7" Hole in the Ground. They released their first EP Pirate Prude in 1994. In 1995 they released their first full length release The Dirt of Luck to critical acclaim and played the second stage of Lollapalooza. ...
Ãâó: en.wikipedia.org/wiki/Helium_(band)
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| helix |
Helix was a short-lived imprint of DC Comics, with a science-fiction theme, launched in 1996 and last used in 1998. It featured a handful of ongoing monthly series, several limited series, and one short graphic novel. ...
Ãâó: en.wikipedia.org/wiki/Helix_(comics)
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| helminthophobia |
The English suffix -phobia is technically used to describe irrational, disabling fear as a mental disorder, and commonly misused to describe hatred of a particular thing or subject. Everyday language has misused the use of this suffix as a mild or irrational fear with no serious substance; however, its origin is from areas of psychiatry which study serious phobias which disable a person's life. ...
Ãâó: en.wikipedia.org/wiki/Helminthophobia
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| helix |
A spiral section of track through which the train either ascends or descends.
Ãâó: www.geocities.com/RollerCoasterTalk/definitions.ht...
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| helical computed tomography |
A detailed picture of areas inside the body. The pictures are created by a computer linked to an x-ray machine that scans the body in a spiral path. Also called spiral CT scan.
Ãâó: www.stjude.org/glossary
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| HEL | having the sun as the center |
|---|---|
| HEL | the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline |
| HEL | a message transmitted by means of the sun's rays |
| HEL | an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on |
| HEL | signal with a heliograph |
| HEL | an intaglio print produced by gravure |
| HEL | worship of the sun |
| HEL | the boundary marking the edge of the sun's influence |
| HEL | any of various South African herbs and subshrubs cultivated for long showy racemes of bright blue flowers with white eyes |
| HEL | any North American shrubby perennial herb of the genus Heliopsis having large yellow daisylike flowers |
| HEL | (Greek mythology) ancient god of the sun |
| HEL | the region inside the heliopause containing the sun and solar system |
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