| hallux valgus | <orthopaedics> A swelling or deformity at the head of the first metatarsal of the great toe (big toe). (13 Nov 1997) |
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| hallux varus | Deviation of the main axis of the great toe to the inner side of the foot away from its neighbor. (05 Mar 2000) |
| halm | <botany> Same as Haulm. Source: Websters Dictionary (01 Mar 1998) |
| halo | <radiobiology> The cold, dense plasma formed outside the last closed flux surface during a vertical displacement event. The large currents which flow through this plasma stop the displacement and transfer the force to the vacuum vessel. If care is not taken in design, the halo currents can be large enough to threaten the structural integrity of the vacuum vessel or in-vessel components. Whereas the centre of a tokamak plasma is too hot for material probes to survive, probes (such as magnetic-field coils) can sometimes be placed in the halo, and can measure things such as the halo current. See: vertical instability. (09 Oct 1997) |
| halo blight | Halo blight is a fatal plant disease which attacks legumes and is caused by the bacteria Pseumonas phaseolicola. The plant develops yellow-ringed, water-soaked spots, then withers and dies without rotting. (09 Oct 1997) |
| halo cast | A cast applied to the shoulders in which metal bars are set that extend over the head to a halo, from which traction may be applied to the head by means of tongs or a halter. (05 Mar 2000) |
| halo current | <radiobiology> Currents in the halo region of a plasma discharge. See: halo. (09 Oct 1997) |
| halo effect | The effect (usually beneficial) that the manner, attention, and caring of a provider have on a patient during a medical encounter, regardless of what medical procedure or services the encounter involves, the influence upon an observation of the observer's perception of the characteristics of the individual observed (other than the characteristics under study) or the influence of the observer's recollection or knowledge of findings on a previous occasion. (05 Mar 2000) |
| halo melanoma | <tumour> A rare condition in which a melanoma is surrounded by an irregular area of depigmentation. (05 Mar 2000) |
| halo nevus | A benign, sometimes multiple, melanocytic nevus in which involution occurs with a central brown mole surrounded by a uniformly depigmented zone or halo. Synonym: leukoderma acquisitum centrifugum, Sutton's disease, Sutton's nevus. (05 Mar 2000) |
| halo sign | <radiology> Narrow, radiolucent ring surrounding breast lesion, indicates benign tumour, rare exceptions: intracystic carcinoma, papillary carcinoma, carcinoma arising in fibroadenoma (12 Dec 1998) |
| halo sign of hydrops | A discredited roentgenographic sign of foetal hydrops caused by scalp oedema so that a definite corona surrounds the skull. (05 Mar 2000) |
| halo traction | Application of skeletal traction to the head by means of a halo device. (05 Mar 2000) |
| halo vision | A condition in which coloured or luminous rings are seen around lights. (05 Mar 2000) |
| haloalcohol hydrogen-halide lyase | <enzyme> Catalyses dehalogenation of vicinal haloalcohols through intramolecular displacement with formation of epoxides; acts on 1,3-dichloro-2-propanol, 3-chloro-1,2-propanediol, 1-chloro-2-propanol and their brominated analogs, 2-bromoethanol and 1,3-dichloroacetone Registry number: EC 4.5.1.- Synonym: halohydrin hydrogen-halide lyase (26 Jun 1999) |
| halo |
The Halo series is a series of first-person shooter video games developed by Bungie Studios and published by Microsoft. So far, two games have been released. In addition, although it has not been announced, a third game seems likely. The games' setting is very similar to the earlier Marathon games by Bungie. They are renowned for their relatively deep storylines, use of vehicles in gameplay and their multiplayer mode. ...
출처: en.wikipedia.org/wiki/Halo_(video_game_series)
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| halo |
Halos are optical phenomena that appear near or around the Sun or Moon, and sometimes near other strong light sources such as street lights. There are many types of halos, but they are mostly caused by ice crystals in cold cirrus clouds located high (5-10 km, or 3-6 miles) in the upper troposphere. The particular shape and orientation of the crystals is responsible for the type of halo observed. ...
출처: en.wikipedia.org/wiki/Halo_(optical_phenomenon)
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| halo sign |
a halo effect produced in the radiograph of the fetal head between the subcutaneous fat and the cranium; said to be indicative of intrauterine death of the fetus.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| Hall's sign |
a tracheal diastolic shock felt in aneurysm of the aorta.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| half-life |
The time needed for one-half of a given amount of radioactive substance to decay.
출처: highered.mcgraw-hill.com/sites/0072549238/student_...
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| HAL | a position some distance below the top of the mast to which a flag is lowered in mourning or to signal distress |
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| HAL | the crescent-shaped area at the base of the human fingernail |
| HAL | the time at which the moon is at first or last quarter when half its face is illuminated |
| HAL | reduced wage paid to someone who is not working full time |
| HAL | disparaging terms for small people |
| HAL | for half the price |
| HAL | a sculptural relief between low relief and high relief |
| HAL | British informal for `intoxicated' |
| HAL | half the usual or regular size |
| HAL | undergarment worn under a skirt |
| HAL | (British) a short vacation about halfway through a school term |
| HAL | having exposed wood framing with spaces filled with masonry, as in Tudor architecture |