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Fr.: colure de solstice
The great circle of the celestial sphere which passes through the poles of the celestial equator and the solstice points. → equinoctial colure.
Fr.: points solsticiaux
The two points of the ecliptic the most distant from the equator.
Chem.: Capable of being dissolved .
M.E., from M.Fr. soluble, from L.L. solubilis "that may be loosened or dissolved," from stem of L. solvere "loosen, dissolve," → solve.
Chem.: A substance which is dissolved in a solvent to form a solution.
From L. solutus, p.p. of solvere "to loosen, dissolve," → solve.
P.p. of luyidan, → solve.
1) The act of solving a problem, question. The state of being solved.
Verbal noun of → solve.
Any of a class of chemical reactions in which solute and solvent molecules combine.
From solv(ent), → solvent + -ation.
Fr.: 1) résoudre; 2) dissoudre
1) To find an answer or solution to; clear up; explain. related concept:
M.E. solven, from L. solvere "to loosen, dissolve, untie," from PIE *se-lu-, from reflexive pronoun *swe- + base *leu- "to loosen, divide, cut apart;" cf. Gk. lyein "to loosen, release, untie," O.E. -leosan "to lose," leas "loose;" E. lose, loose and Ger. los derive from this root.
Luyidan, infinitive from stem lu(y)-, from lu, variant of Mod.Pers. las "loose," lâ "slit, cut," luš "torn," lok "torn, piece," lâc "open, wide open;" lu, lunoti "to cut, sever, mow, pluck, tear asunder, destroy," lava "cutting, plucking; what is cut; fragment, piece;" Gk. lyein "to loosen, release, untie," as above. PIE *leu- "to loosen, divide, cut apart".
Substance having the power of dissolving other substances in it.
Agent noun of → solve.
Fr.: galaxie Sombrero
Kahkešân, → galaxy; sombrero, Sp., as above.
A rocket or balloon carrying instruments to probe conditions in the upper atmosphere.
From Fr. sonde "ounding line; plumb line."
Gomâné "a shaft sunk in order to ascertain the depth of the water when making a subterraneous canal," from Proto-Iranian *vi-mā-, from vi- "apart, away from, out" (cf. Av. vi-; O.Pers. viy- "apart, away;" Skt. vi- "apart, asunder, away, out;" L. vitare "to avoid, turn aside") + mā- "to measure" (cf. O.Pers./Av. mā(y)- "to measure;" Mod.Pers. mâ/mun/mân "measure," as in Pers. terms âzmâ- "to test;" pirâmun "perimeter," âzmun "test, trial," peymân "measuring, agreement," peymâné "a measure; a cup, bowl;" PIE base *me- "to measure;" cf. Skt. mati "measures," matra- "measure;" Gk. metron "measure;" L. metrum).
Of, relating to, or being the speed of sound in a medium.
From L. sonus, → sound.
Sedâyi, pertaining to sedâ, → sound.
qariv-e sedâ (#)
Fr.: bang sonique
A noise caused by a shock wave that emanates from an object traveling at or above the speed of sound.
→ sonic; boom, M.E. bombon, bummyn "to buzz;" cf. Du. bommen, Ger. bummen, word made by sound imitation.
Qariv "shout, clamour, cry;" sedâyi, → sonic.
Fr.: point sonique
The point where the → stellar wind makes a transition from → subsonic to → supersonic flow. In the particular case of a spherically symmetric wind (thus with no magnetic field), the distance from star, at which the sonic point occurs, is given by: rs = (GM*)/2cs2, where G is the → gravitational constant, M* is the stellar mass, and cs the → sound speed at the sonic point.
To gather on a surface either by absorption, adsorption, or a combination of the two processes.
Verb, from sorption, extracted from → absorption→ adsorption, from L. sorbere "suck in," from PIE base *srebh- "to suck, absorb" (cf. Arm. arbi "I drank;" Gk. rhopheo "to gulp down;" Lith. srebiu "to drink greedily").
Šamidan, from šam, variant of šâm, as in âšâm, âšâmidan "to drink, to sip;" Av. šam- "to drink, sip, swallow;" Skt. cam, camati "to sip, dirink, lick up, absorb."
Verbal noun of → sorb
Fr.: période sothique
The interval after which the heliacal rising of the star Sirius occurs at the same time of the year. It is a period of 1,460 Sothic years.
From Fr. sothique, from Gk. Sothis, an Egyptian name of Sirius; → period.
Fr.: année sothique
The Egyptian year of 365 days and 6 hours, as distinguished from them Egyptian vague year, which contained 365 days.
1) sedâ (#); 2) dorvâ
Fr.: 1) son; 2) sain
1) A physiological sensation received by the ear. It is caused by a vibrating
source and transmitted as a longitudinal pressure wave motion through a material
medium such as air.
1) M.E. soun; O.Fr. son, from L. sonus "sound," sonare "to sound;"
PIE base *suen- "to sound;" cf.
Av. xvan- "to sound;"
Pers. xvân-, xvândan "to sing, read;"
Skt. svana- "sound," svan-
"to sound," svanati "it sounds;" O.E. swinn "music, song"
1) Sedâ "sound," most probably a Pers. term, since it exists also in Indo-Aryan
languages: Skt. (late Vedic): sabda "articulate sound, noise,"
Pali and Prakriti: sadda "sound, noise," Sindhi: sadu, sado "shout, call,"
Gujrâti sad "call, voice, echo,"
Marathi: sad "shouting to," Konkani sad "sound,"
Sinhali: sada "sound." Therefore,
sadâ in Ar. "reverberating noise, echo" maybe a loan
from Pers., or a coincidence. Note that for the author of the classical Pers.
dictionary Borhân-e Qâte' (India, 1652 A.D.), the Ar. term is
a loanword from Pers.
divâr-e sedâ, varqe-ye ~
Fr.: mur du son
A sharp increase in aerodynamic drag that occurs as the speed of an aircraft approaches the speed of sound. Also called sonic barrier.
Fr.: énergie acoustique
The energy which → sound waves impart to a medium. Same as acoustic energy.