| 영문 | ozone | 한글 | 오존 |
|---|---|---|---|
| 설명 | 산소의 동소체. 원소기호 O3, 분자량 48.00, 비중 2.144, 녹는점 －193℃, 끓는점 －110.51℃ 특유한 냄새 때문에 ‘냄새를 맡다’를 뜻하는 그리스어 ozein을 따서 명명되었다. 상온에서는 약간 청색을 띠는 기체이나, 액체가 될 때는 흑청색, 고체가 될 때는 암자색을 띤다. 특이한 냄새가 나며, 공기 속에 0.0002부피 %만 있어도 냄새를 감지할 수 있다. 기체는 물에 잘 녹지 않으며, 0℃에서 1부피의 물에 0.494부피밖에 녹지 않는다. 물에 녹은 오존은 서서히 분해한다. 상온에서 자발적으로 분해되어 산소가 되고, 이산화망간-백금 분말 등은 분해를 촉진시킨다. 강한 산화력을 가져, 은을 과산화은으로, 황화납을 황산납으로, 황을 산화황으로 산화한다. 극장-학교-병원 등에서 산소에 분해되는 성질을 이용하여 공기의 정화에 사용되며 살균작용에 의한 음료수 소독, 표백이나 유기화합물의 구조 결정 등에 사용된다. 인체에 독성이 있어 장시간 흡입하면 호흡기관을 해치므로 주의해야 한다. 지상에서 20~25km 고도에 20km 두께로 비교적 농도가 높은 오존이 분포하는데, 이것을 오존층이라고 한다. 이 오존층에서 태양의 자외선을 흡수하기 때문에 지구의 생물은 자외선에 의한 피해를 막을 수 있다. 그러나 환경오염으로 인해 오존층이 서서히 파괴되고 있어 그 대책이 시급하다. |
||
| O3 | ozone |
|---|---|
| BC/BS | Blue Cross/Blue Shield [plan] |
| BCBSA | Blue Cross and Blue Shield Association |
| BS | Bachelor of Science; Bachelor of Surgery; Bacillus subtilis; Bartter syndrome; base strap; bedside; ... |
| BSA | benzenesulfonic acid; Biofeedback Society of America; bismuth-sulfite agar; bis-trimethylsilyl-aceta... |
| ozone | <chemistry> A colourless gaseous substance (O) obtained (as by the silent discharge of electricity in oxygen) as an allotropic form of oxygen, containing three atoms in the molecule. It is a streng oxidizer, and probably exists in the air, though by he ordinary tests it is liable to be confused with certain other substances, as hydrogen dioxide, or certain oxides of nitrogen. It derives its name from its peculiar odour, which resembles that of weak chlorine. Origin: Gr. Smelling, p. Pr. Of to smell. See Odour. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| blue shield | A prepaid health insurance plan for costs of physicians' services. (12 Dec 1998) |
| water shield | <botany> An aquatic American plant (Brasenia peltata) having floating oval leaves, and the covered with a clear jelly. Source: Websters Dictionary (01 Mar 1998) |
| shield | 1. To cover with, or as with, a shield; to cover from danger; to defend; to protect from assault or injury. "Shouts of applause ran ringing through the field, To see the son the vanquished father shield." (Dryden) "A woman's shape doth shield thee." (Shak) 2. To ward off; to keep off or out. "They brought with them their usual weeds, fit to shield the cold to which they had been inured." (Spenser) 3. To avert, as a misfortune; hence, as a supplicatory exclamation, forbid! "God shield that it should so befall." (Chaucer) "God shield I should disturb devotion!" (Shak) Origin: AS. Scidan, scyldan. See Shield. 1. A broad piece of defensive armor, carried on the arm, formerly in general use in war, for the protection of the body. See Buckler. "Now put your shields before your hearts and fight, With hearts more proof than shields." (Shak) 2. Anything which protects or defends; defense; shelter; protection. "My council is my shield." 3. Figuratively, one who protects or defends. "Fear not, Abram; I am thy shield, and thy exceeding great reward." (Gen. Xv. 1) 4. <botany> In lichens, a Hardened cup or disk surrounded by a rim and containing the fructification, or asci. 5. The escutcheon or field on which are placed the bearings in coats of arms. Cf. Lozenge. 6. <chemical> A framework used to protect workmen in making an adit under ground, and capable of being pushed along as excavation progresses. 7. A spot resembling, or having the form of, a shield. "Bespotted as with shields of red and black." 8. A coin, the old French crown, or ecu, having on one side the figure of a shield. <botany> Shield fern, any fern of the genus Aspidium, in which the fructifications are covered with shield-shaped indusia; called also wood fern. Origin: OE. Sheld, scheld, AS. Scield, scild, sceld, scyld; akin to OS. Scild, OFries. Skeld, D. & G. Schild, OHG. Scilt, Icel. Skjoldr, Sw. Skold, Dan. Skiold, Goth. Skildus; of uncertain origin. Cf. Sheldrake. Source: Websters Dictionary (01 Mar 1998) |
| shield-bearer | 1. One who, or that which, carries a shield. 2. <zoology> Any small moth of the genus Aspidisca, whose larva makes a shieldlike covering for itself out of bits of leaves. Source: Websters Dictionary (01 Mar 1998) |
| nipple shield | A cap or dome placed over the nipple to protect it during nursing. (05 Mar 2000) |
| embryonic shield | A thickened area of the embryonic blastoderm from which the embryo develops. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|