to filter out harmful rays

См. также в других словарях:

• filter — fil|ter1 [ˈfıltə US ər] n [Date: 1300 1400; : Old French; Origin: filtre piece of felt (= thick material) used as a filter , from Medieval Latin filtrum] 1.) something that you pass water, air etc through in order to remove unwanted substances… …   Dictionary of contemporary English

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• ray — noun ADJECTIVE ▪ powerful ▪ blinding, bright, brilliant ▪ a blinding ray of light ▪ golden ▪ …   Collocations dictionary

• Ecamsule — IUPAC name [(3Z) 3 [[4 [(Z) [7,7 Dimethyl 2 oxo 1 (sulfomethyl) 3 bicyclo[2.2.1]heptanylidene]methyl]phenyl]methylidene] 7,7 dim …   Wikipedia

• ray */ — UK [reɪ] / US noun [countable] Word forms ray : singular ray plural rays 1) [usually plural] an amount of light or heat from the sun The last rays of the sun were disappearing behind the mountains. Your skin needs protection from the sun s rays.… …   English dictionary

• ray — [ reı ] noun count * 1. ) usually plural light or heat from the sun: The last rays of the sun were disappearing behind the mountains. Your skin needs protection from the sun s rays. a ) a narrow line of light that you can see coming from the sun… …   Usage of the words and phrases in modern English

• Sunglasses — For the Divine Brown song, see Sunglasses (song). Wearing sunglasses under direct sunlight: Large lenses offer good protection, but broad temple arms are also needed against stray light from the sides. Sunglasses or sun glasses are a form of… …   Wikipedia

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• Light therapy — Intervention Bright light therapy is a common treatment for seasonal affective disorder and for circadian rhythm disorders. ICD 10 PCS …   Wikipedia

• Textile preservation — refers to the processes by which textiles are cared for and maintained to be preserved from future damage. The field falls under the category of art conservation as well as library preservation, depending on the type of collection. In this case,… …   Wikipedia

• Beryllium — (pronEng|bəˈrɪliəm) is a chemical element with the symbol Be and atomic number 4. A bivalent element, beryllium is a steel grey, strong, light weight yet brittle alkaline earth metal. It is primarily used as a hardening agent in alloys, most… …   Wikipedia