| 영문 | radiolucency | 한글 | 방사선투과성 |
|---|---|---|---|
| 설명 | X-선같은 방사선이 자유롭게 투과할 수 있는 성질을 지칭하는 말로 인체에서는 공기로 가득 차 있는 허파가 대표적인 방사선 투과성 장기에 해당되는데 필름에는 검게 나타난다. 그리고 이에 비해 방사선이 잘 투과하지 않는 경우 방사선비투과성(radiopacity)라고 한다. 이 경우 필름에는 희게 표시되는 데 뼈가 대표적인 경우이다. 방사선투과성에 따라 인체의 조직을 나누면 다음과 같은 순서이다. |
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| 영문 | radiopacity | 한글 | 방사선 불투과성 |
|---|---|---|---|
| 설명 | X-선 같은 방사선을 어떤 물질에 쪼일 때, 자유롭게 투과되지 않고 흡수되어 필름에는 희게 나타나는 경우를 말한다. 인체에서는 뼈와 같이 치밀한 구조물이 방사선 불투과성물질에 해당된다. 이에 비해 공기가 차 있는 폐와 같은 구조물은 필름상에서 검게 나타나는 데, 이것을 방사선투과성(radiolucency)이라고 한다. |
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| 영문 | radiopharmaceutical | 한글 | 방사성의약품 |
|---|---|---|---|
| 설명 | 진단 또는 치료적 목적으로 쓰이는 방사능을 지닌 의약품으로, 보통 어떤 약품이나 물질에 방사성 동위원소를 붙인 것이다. 예를 들어 갑상샘종의 진단을 위해 방사선동위원소인 요오드(I131)를 사용시 이를 말한다. |
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| 영문 | radiosensitivity | 한글 | 방사선민감성 |
|---|---|---|---|
| 설명 | 방사선 생물작용 특징의 하나이다. 방사선에 대한 생물작용에는 세포와 조직에 따라 차이가 있다. 예를 들어 같은 선질, 같은 선량의 방사선을 조사했어도, 점막이나 피부에는 반응이 나오나 뼈에는 반응이 없을 때, 점막이나 피부는 뼈에 비해 방사성 감수성이 높다고 말한다. 일반적으로 세포분열이 왕성한 것, 장차 분열의 기회가 많은 것, 미분화한 것일수록 감수성이 높다. |
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| 영문 | radium | 한글 | 라듐 |
|---|---|---|---|
| 설명 | 방사능을 지닌 원소기호 88번, Ra로 표기하는 화학적 원소로서, 반감기는 1662년이고, α, β 및 γ선을 방출한다. 라듐은 붕괴되어 라돈(radon)이 된다. 방사선 치료에 이용한다. |
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| radial reflex | On tapping the lower end of the radius, flexion of the forearm occurs, and sometimes, on strong percussion, flexion of the fingers. See: inverted radial reflex. (05 Mar 2000) |
|---|---|
| radial scar | A variant of sclerosing adenosis of the breast with central scar formation and radiating hyperplastic ducts. Synonym: radial scar. (05 Mar 2000) |
| radial sclerosing lesion | A variant of sclerosing adenosis of the breast with central scar formation and radiating hyperplastic ducts. Synonym: radial scar. (05 Mar 2000) |
| radial spoke | The structure that links the outer microtubule doublet of the ciliary axoneme with the sheath that surrounds the central pair of microtubules. The spokes are arranged periodically along the axoneme every 29nm, have a stalk about 32nm long and a bulbous region adjacent to the sheath. at least 17 different polypeptides are associated with the spokes. Spokes are thought to restrict the sliding of doublets relative to one another, digestion of the radial spokes will allow sliding apart of the doublets. (18 Nov 1997) |
| radial styloid tendovaginitis | Fibrosis of the sheath of a tendon of the thumb. Synonym: radial styloid tendovaginitis. (05 Mar 2000) |
| radial tuberosity | An oval projection from the medial surface of the radius just distal to the neck, giving attachment on its posterior half to the tendon of the biceps. Synonym: tuberositas radii, bicipital tuberosity, tuber radii, tuberosity of radius. (05 Mar 2000) |
| radial veins | Venae comitantes of the raidal artery continuing from those of the radial aspect of the deep palmar arch, draining into the venae comitantes of the brachial artery in the cubital fossa. Synonym: venae radiales. (05 Mar 2000) |
| radiale | Origin: NL. See Radial. 1. <anatomy> The bone or cartilage of the carpus which articulates with the radius and corresponds to the scaphoid bone in man. 2. <zoology> Radial plates in the calyx of a crinoid. Source: Websters Dictionary (01 Mar 1998) |
| radialis | Synonym: radial. Origin: Mod. L. (05 Mar 2000) |
| radialis indicis artery | <anatomy, artery> Origin, radial; distribution, radial side of index finger. Synonym: arteria radialis indicis, arteria volaris indicis radialis, radial index artery. (05 Mar 2000) |
| radially | Arranged or having parts arranged like rays developing uniformly around a central axis. (09 Oct 1997) |
| radially symmetrical | Said of an organism or organ which can be cut through the centre into equal and similar parts along two or more planes, actinomorphic. (09 Oct 1997) |
| radian | <mathematics> An arc of a circle which is equal to the radius, or the angle measured by such an arc. Origin: From Radius. Source: Websters Dictionary (01 Mar 1998) |
| radiant | 1. Emitting or proceeding as from a center; rays; radiating; radiate. 2. Especially, emitting or darting rays of light or heat; issuing in beams or rays; beaming with brightness; emitting a vivid light or splendor; as, the radiant sun. "Mark what radiant state she spreads." (Milton) 3. Beaming with vivacity and happiness; as, a radiant face. 4. Giving off rays; said of a bearing; as, the sun radiant; a crown radiant. 5. <botany> Having a raylike appearance, as the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers. <physics> Radiant energy See Radiant. Origin: L. Radians, -antis, p. Pr. Of radiare to emit rays or beams, fr. Radius ray: cf. F. Radiant. See Radius, Ray a divergent line. 1. <optics> The luminous point or object from which light emanates; also, a body radiating light brightly. 2. <geometry> A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve. 3. <astronomy> The point in the heavens at which the apparent paths of shooting stars meet, when traced backward, or whence they appear to radiate. Source: Websters Dictionary (01 Mar 1998) |
| radiant energy | Energy contained in light rays or any other form of radiation. (05 Mar 2000) |
Synonyms : Experimental Radiation Injuries, Injuries, Experimental Radiation, Experimental Radiation Injury, Radiation Injury, Experimental
Synonyms : Leukemia Virus, Radiation, Leukemia Viruses, Radiation, Radiation Leukemia Viruses
Synonyms : Monitoring, Radiation
Synonyms :
Synonyms : Fibrosis, Radiation, Radiation Fibrosis, Radiation Pneumonia, Fibroses, Radiation, Pneumonias, Radiation, Pneumonitides, Radiation, Radiation Fibroses, Radiation Pneumonias, Radiation Pneumonitides
| radiation |
energy that is radiated or transmitted in the form of rays or waves or particles the act of spreading outward from a central source radiation sickness: syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours; "he was suffering from radiation" the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay the spread of a group of organisms into new habitats a radial arrangement of nerve fibers connecting different parts of the brain radiotherapy: (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
출처: wordnet.princeton.edu/perl/webwn
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| radio frequency |
an electromagnetic wave frequency between audio and infrared
출처: wordnet.princeton.edu/perl/webwn
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| radio- |
medium for communication radio receiver: an electronic receiver that detects and demodulates and amplifies transmitted signals transmit messages via radio waves; "he radioed for help" a communication system based on broadcasting electromagnetic waves indicating radiation or radioactivity; "radiochemistry"
출처: wordnet.princeton.edu/perl/webwn
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| radio-opacity |
radiopacity: opacity to X-rays or other radiation
출처: wordnet.princeton.edu/perl/webwn
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| radiocarpal joint |
wrist: a joint between the distal end of the radius and the proximal row of carpal bones
출처: wordnet.princeton.edu/perl/webwn
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| radi | energy that is transmitted in the form of (electromagnetic) radiation |
|---|---|
| radi | the rate of flow of radiant energy (electromagnetic waves) |
| radi | heating a building by radiation from panels containing hot water or electrical heaters |
| radi | in a radiant manner |
| radi | send out real or metaphoric rays |
| radi | spread into new habitates and produce variety or variegate |
| radi | issue or emerge in rays or waves |
| radi | experience a feeling of well-being or happiness, as from good health or an intense emotion |
| radi | cause to be seen by emitting light as if in rays |
| radi | esp. of the complexion: show a strong bright color, such as red or pink |
| radi | extend or spread outward from a center or focus or inward towards a center |
| radi | send out rays or waves |