The capcity of a diffraction grating, in certain configurations, to concentrate a large percentage of the incident light into a specific diffraction order.
Blazing, noun from → blaze.
Belizeš, noun from beliz "blaze."
General: A flaw or defect.
From O.Fr. blemiss "to turn pale," extended stem of blemir, blesmir "to injure, make pale."
Âk "defect, blemish," Mid.Pers. ak, âk "evil, harm," Av. aka- "bad, wicked;" cf. Skt. aka- "pain , trouble."
1) tuham; 2) tuham šodan
Fr.: 1a) blend; 1b) mot-valise; 2) mélanger
1a) Description of two or more adjacent → spectral lines
which are mixed due to insufficient → resolving power
of the → spectrograph.
M.E., from O.N. blanda; akin to O.E. blandan "to mix," Lith. blandus "impure, cloudy."
Tuham, from tu "inside" + ham "together," → com-.
xatthâ-ye tuham, tânhâ-ye ~
Fr.: raies mélangées
→ Spectral lines intermingled.
Unable to see; sightless.
M.E., from O.E. blind "blind," akin to Du., Ger. blind, O.N. blindr, Goth. blinds "blind."
Kur "blind," variants kul "squint-eyed," kolok, kalek, kelek, kalâž, kâž, kâj, kâc "squint-eyed," Lori, Laki, Kurd. xêl "cross-eyed, squinting;" Mid.Pers. kôr "blind;" akin to O.Irish coll "one-eyed;" M.Irish goll "blind;" Gk. (Hes.) kellas "one-eyed;" Skt. kāná- "blind of one eye;" PIE *kolnos "one-eyed." The Pers. luc "crossed-eyed" may be related to a separate group containing L. lusca, luscus "one-eyed" (Fr. louche "squinting").
The state or condition of being sightless.
1) To close and open the eyes rapidly.
M.E. blinken, variant of blenken "to blench;" cf. Du. and Ger. blinken.
Možidan, from možé "eyelash," Mid.Pers. mec "eyelash," mecitan "to blink," cf. Skt. mes "to open the eyes," O.C.S. po-mežiti "to close the eyes." → twinkling.
Fr.: comparateur à clignotement
An instrument for comparing two photographs of the same stellar field, taken at different times, by quickly alternating from one to the other. The purpose of the comparison is to detect subtle changes in the position or brightness of the stars.
An intermittent appearance of a group of characters on the display terminal, usually used to convey a message to the user.
Blinking, noun from to blink.
Možeš, noun from možidan, → blink (v).
A small cyst on the skin, containing watery liquid, as from a burn or other injury.
M.E. blister, blester, from O.Fr. blestre, of Germanic origin.
Tâval "blister" (variants Torbet-Heydariye-yi toval, Guqari tavol), from suffixed (-al) tâv- tav, taf- "to heat, burn, shine," variant of tâb-, tâbidan "to shine," → luminous.
Fr.: modèle d'ampoule
A new type of astronomical object, appearing as an intense → burst of → radio emission, proposed to explain → fast radio bursts. In some models, blitzars result from the sudden → collapse of a hypothetical → supermassive neutron star.
A severe weather condition characterized by high winds (at least 55 km/h) and reduced visibility due to violent snowstorm.
Blizzard, of unknown origin.
Damé "wind and snow storm."
Fr.: tache, concentration, condensation
From M.E. bubelen "to bubble."
Žig "drop," probably from žohidan "to drop," variant of cakidan "to drop."
The red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body (OxfordDictionaries.com).
M.E. blo(o)d, O.E. blôd; akin to O.Frisian, O.Saxon blôd, O.H.G. bluot (Ger. Blut), Gothic bloth.
Xun, from Mid.Pers. xûn; cf. Sogd. xurn, Khotanese hûna, Yaghnobi waxin, Av. vohunī,
Fr.: blooming, bavure
Blooming "glare," from to bloom "to glare, glow."
1) To move along, carried by or as by the wind.
M.E., from O.E. blawan "blow, breathe, make an air current; kindle; inflate; sound a wind instrument;" cf. O.H.G. blaen, Ger. blähen; from PIE *bhle- "to swell, blow up."
Damidan, from Mid.Pers. damidan "to blow, breathe;" dam "breath, breath of an owen; bellows; smoke; air," also "moment, time;" Av. dāδmainya- "blowing up;" cf. Skt. dahm- "to blow," dhámati "blows;" Gk. themeros "austere, dark-looking;" Lith. dumti "to blow;" PIE dhem-/dhemə- "to smoke, to blow."
The hue of that portion of the visible spectrum lying between green and indigo, evoked in the human observer by radiant energy with wavelengths of approximately 420 to 490 nanometers.
From O.Fr. bleu, P.Gmc. *blæwaz, from PIE base *bhle-was "light-colored, blue, blond, yellow."
Âbi "color of water," from âb "water," Mid.Pers. âb, O.Pers./Av. âp-, Skt. âp-, PIE *âp-; → Aquarius.
blue compact dwarf galaxy
kahkešân-e kutule-ye âbi-ye hampak
Fr.: galaxie naine bleue compacte
An small → irregular galaxy undergoing → violent star formation activity. These objects appear blue by reason of containing clusters of hot, → massive stars which ionize the surrounding interstellar gas. They are chemically unevolved since their → metallicity is only 1/3 to 1/30 of the solar value. Same as → H II galaxy.
Fr.: continuum bleu
The → continuum emission of an astronomical source with wavelengths between about 492 and 455 nm.