Unidentified Infrared Band (UIB)
bând-e forusorx-e nâ-idânidé
Fr.: bande infrarouge non identifiée
A no longer in general use name for → Aromatic Infrared Band.
Fr.: raie non identifiée
A spectral line whose origin is not clearly established. → line identification.
1) The process of unifying or uniting; union.
Verbal noun of → unify.
Without variations; identical, always the same in quality, degree, character, or manner.
Yekdis, from yek, → uni-, + dis, → form; yeknavâxt, literally "with one rhythm," from yek, → one, + navâxt "rhythm," from navâxtan, navâzidan "to play an instrument; to gratify," navâ "music, song, melody" (Mid.Pers. nw'c "to treat kindly, honour," niwag "music, melody;" Proto-Iranian *ni-uac-, from ni- "down; into," → ni- (PIE), + *uac- "to speak, treat kindly").
uniform circular motion
jonbeš-e dâyereyi-ye yekdis, ~ ~ yeknavâxt
Fr.: mouvement circulaire uniforme
The motion of an object around a fixed point at a constant angular speed, and at constant radius.
meydân-e yekdis, ~ yeknavâxt
Fr.: champ uniforme
A field that at a given instant has the same value at all points within a specified region of interest.
→ uniform; field.
uniform magnetic field
meydân-e meqnâtisi-ye yekdis
Fr.: champ magnétique uniforme
A → magnetic field whose direction does not change and whose strength is constant at every point.
jonbeš-e yekdis, ~ yeknavâxt
Fr.: mouvement uniforme
→ uniform; motion.
yegânestan (#), yegânidan (#)
To make or become a single unit or entity. → grand unified theory
M.Fr. unifier, from L.L. unificare "to make one," from L. uni-, → one, + facere "to make" (cf. Fr. faire, Sp. hacer), from PIE base *dhe- "to put, to do" (cognate with Mod.Pers. dâdan "to give;" O.Pers./Av. dā- "to give, grant, yield," dadāiti "he gives; puts;" Skt. dadáti "puts, places;" Hitt. dai- "to place;" Gk. tithenai "to put, set, place;" Lith. deti "to put;" Czech diti, Pol. dziac', Rus. det' "to hide," delat' "to do;" O.H.G. tuon, Ger. tun, O.E. don "to do").
Yegânestan, yegânidan "to make one," infinitive from yek, → one.
General: The act of uniting two or more things.
M.E. from O.Fr. union from L.L. unionem (nominative unio) "oneness, unity," from unus, → one, cognate with Pers. yek, as below.
Existing as the only one or as the sole example.
From Fr. unique, from L. unicus "single, sole," from unus, → one.
Yektâ "unique," from yek, → one, + tâ "fold, plait, ply; piece, part" (Mid.Pers. tâg "piece, part").
The state or condition of being → unique.
Noun from → unique.
Fr.: théorème d'unicité
1) Physics: A → potential that satisfies both
→ Poisson's equation and the
→ boundary conditions
pertinent to a particular field is the only possible potential.
yekâ (#), yekân (#)
A quantity or dimension adopted as a standard of measurement.
Back formation from → unity.
Yekâ, yekân, from yek, → one.
Fr.: vecteur unité
A vector of length 1, also called a direction vector.
Of or pertaining to a unit or units; having the indivisible character of a unit.
From → unit + -ary.
Yekâyi, yekâni, from yekâ, yekân, → unit.
goruh-e yekâyi, ~ yekâni
Fr.: groupe unitaire
The set of n × n unitary matrices (→ unitary matrix).
mâtris-e yekâyi, ~ yekâni
Fr.: matrice unitaire
A square matrix whose inverse equals its adjoint.
tarâdis-e yekâyi, ~ yekâni
Fr.: transformation unitaire
A transformation whose reciprocal is equal to its Hermitian conjugate.
To join, combine, or incorporate so as to form a single whole or unit.
M.E. uniten, from L. unitus, p.p. of unire "to unite," from unus, → one.