A round vessel pivoted on a central axis that rotates by the force of internal steam escaping from two diametrically opposed narrow apertures. Aeolipile, first described by Hero of Alexandria (c. 10-70 AD), is an early example of → jet propulsion.
L aeolipila, from Gk aiolipyle, from Aiolon pyle, fr. aioli-, from Aiolos "god of wind," + pyle "gate."
1) General: An indefinitely long period of time; an age.
L. aeon, from Gk. aion "age, eternity;" akin to Av. āiiu- "duration, period, lifetime;" Skt. áyu- "life, longevity."
Âyu, from Av. āiiu- "duration, period, lifetime" (Sogd. āy "life, age"), as above.
Of or pertaining to → aerodynamics.
Fr.: force aérodynamique
A stony meteorite consisting of silicate minerals. This alternative name for a stony meteorite, is now largely obsolete.
Aerolite, from Gk. aero-, → air, + Gk. lithos "stone".
Havâsang from Persian havâ "air"; compare with Mid. Pers./Mod. Pers. vây "weather," from Av. vayah-, vaya- "weather, atmosphere," from va- "to blow". Cognate with Skt. va-, Gk. aemi "to blow" + sang, → stone.
A subdivision of meteorology concerned with the total vertical extent of the atmosphere as opposed to the study of the atmosphere near Earth's surface.
Aerology from Gk. aero- "air" + Gk. logia "study of," from legein "to speak".
Javvšenâsi, from Ar. javv "air, atmosphere" + šenâsi "knowledge, knowing," from šenâxtan "to know," from Av./O.Pers. xšnâ "to learn, come to know, know," compare with Skt. jna "to know," Gk. gignoskein "to know, think, judge," L. gnoscere, noscere "to come to know," PIE *gno- "to know."
The science and technology concerned with designing, constructing, and operating machines capable of flying in the atmosphere.
From aeronautic, from Fr. aéronautique, from aéro-, from Gk. aer, → air, + nautique "of ships," from L. nauticus, from Gk. nautikos, from naus "ship" (cognate with Mod.Pers. nâv "ship;" Av./O.Pers. *nāv-, O.Pers. nāviyā- "fleet;" Skt. nau-, nava- "ship, boat;" Gk. naus, neus, L. navis; PIE *nāu- "ship").
Havânavardi, from havâ, → air, + navardi, verbal noun of navardidan "to travel, walk, pass by and over."
The study of the upper atmosphere, especially of regions of ionized gas.
From Gk. aer- "weather" + nomos "arranging, regulating," related to nemein "to deal out."
Vâyšenâsi from Mid. Pers./Mod. Pers. vây "weather," Av. vayah-, vaya- "weather, atmosphere," from va- "to blow;" cf. Skt. va-; Gk. aemi "to blow;" Av. vāta- "wind;" Skt. vata-; L. ventus, Mod. Pers. bâd, → wind; PIE *we- "to blow".
A suspension of fine solid or liquid particles in a gas.
Aerosol from aero "air" + sol(ution).
Havâlu from havâ "weather" + lu from → luyé, luyeš, → solution.
zibâyik, zibâ-šenâxti, zibâ
Relating to the philosophy of → aesthetics.
Adjective from → aesthetics.
zibâyik (#), zibâyi-šenâsi
1) The branch of philosophy dealing with such notions as the beautiful, the ugly,
the sublime, the comic, etc., as applicable to the fine arts, with a view to establishing
the meaning and validity of critical judgments concerning works of art, and the
principles underlying or justifying such judgments.
From Ger. Ästhetisch or Fr. esthétique, both from Gk. aisthetikos "sensitive, perceptive," from aisthanesthai "to perceive, to feel."
From Fr., from L. affinis "bordering on; neighboring; related."
Karvan, literally "bordering on; possessing border (with); related," from (Bašgard) ker "border, boundary," (Fin Bandar Abbas) karaq "border, edge;" classical Pers. karân, kenâr "boundary, side, edge;" + -van suffix of possession, relation.
Fr.: combinaison affine
A linear combination of vectors in which all the vector coefficients add up to one.
Fr.: géométrie affine
Fr.: ensemble affine
A set → if and only if (iff) for any two points in the → set, the line through them is contained in the set. In other words, for any two points in the set, their → affine combinations are in the set itself.
Fr.: transformation affine
1) General: A relationship or resemblance.
From L. affixus "fastened to," p.p. of affigere "fasten to, attach," from af-, variant of → ad- "to" + figere "fasten."
Vand, variant band "tie, band," present stem of Mod.-Mid./Pers. bastan/vastan "to bind, shut;" Av./O.Pers. band- "to bind, fetter," banda- "band, tie;" cf. Skt. bandh- "to bind, tie, fasten;" PIE *bhendh- "to bind," cf. Ger. binden, E. bind.
akânun, bikânun (#)
Describing a lens or optical system with a convergent power of zero, whose object and image points stretch to infinity. Thus, → afocal system.