Fr.: écart, désaccord
Divergence or disagreement, as between facts, claims, or calculations.
From L. discrepantia, from discrepantem, pr.p. of discrepare "sound differently, differ," from → dis- "apart, off" + crepare "to rattle, crack."
Nâhamxâni, from nâ- "non, un-," → a-, + hamxâni "siniging together," from ham- "together," → com-, + xâni, from xân stem of xândan "to sing; to read; to call," Mid.Pers. xwân- "to resound; to call," Av. xvan- "to sound," Proto-Iranian *huan- "to call;" cf. Skt. svan-, sváranti "to sound, make a sound, sing;" L. sonus "sound," sonare "to sound;" O.E. swinn "music, song," PIE base *suen- "to sound" (Cheung 2007).
Fr.: écart de masse
1) For → massive stars and → supergiants,
the difference between the → spectroscopic mass and the
→ evolutionary mass. Early studies found that the spectroscopic
mass was systematically less than the evolutionary mass by as much as a factor of 2 for
supergiants. Improvements in the stellar atmosphere models (taking into account
→ line blanketing) have decreased or eliminated the size of the
discrepancy for Galactic stars. There is still a mass discrepancy for the hottest
→ O stars in the → Magellanic Clouds
(See, e.g. Massey et al. 2009, ApJ 692, 618).