An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

A representation of a real number between 0 and 1, as written a = d₁d₂d₃ ..., where each d_i is one of the digits 0, 1, 2, ..., 9. This means that a = d₁ x 10^-1 + d₂ x 10^-2 + d₃ x 10^-3+ ...

→ decimal; → representation.

Same as → ubiquitous.

→ omni-; → present.

1) Being, existing, or occurring at this time or now.
2) At this time; at hand; immediate.
3) Grammar: Noting an action or state occurring at the moment of speaking.

M.E., from O.Fr. present, from L. præsentem (nominative præsens) "present, immediate," from pr.p. of præesse "to be before, to be at hand," from præ- "before," → pre-, + esse "to be;" cf. Pers. ast "is," hastan, astan "to be;" O.P. ah- "to be," astiy "is;" Av. ah- "to be," astī "is;" Skt. as- "to be," ásti "is;" Gk. esti "is;" PIE base es- "to be."

Pišâst, on the model of L. præesse, as above, from piš, → pre-, + epenthetic -â- + ast "is," variants hast, hi, has (Qâyen), isâ (Rašt), a (Aftar), heye (Kurd.); Av./O.Pers. ah- "to be," Proto-Ir. *Hah- "to be," → existence.
Bâšandé agent noun from budan "to be;" → condition.
Konuni "presently," from konun, aknun "now, present," from *hak-nun, from *hak-, cf. Av. hakat- "at once, immediately" + nū- "now" (Mid/Mod.Pers. nun "now, at present"); Av. nūrəm "now;" O.Pers. nūram "now;" Skt. nú- "now, just, but," nūnám "now, at present, indeed;" Gk. nun "now;" L. nu- "now" (in nu-dis "the day after tomorrow"); Goth. nu "now;" O.E. nu; E. now; PIE base *nu- "now."

Same as → present epoch, → today, → current cosmological epoch.

→ present; → day.

Same as → present day, → today, → current cosmological epoch.

→ present; → epoch.

A → participle that indicates an ongoing action or state in the present.

→ present; → participle.

The present number of stars on the → main sequence per unit logarithmic mass interval per square parsec. The PDMF is the basis for deriving the → initial mass function (IMF). This mass function is not corrected for stellar evolution nor losses through stellar deaths.

→ present; → day; → mass; → function.

1) The act or the action of representing; the state of being represented.
2) The expression by some term, character, symbol, or the like.

M.E. representacion, from L. repraesentation, from repraesentatus p.p. of repraesentare, from → re- + praesentare "to show, give, present for approval," from praesens, from praeesse "to be before others, to be present," from prae- "before," → pre- + esse "to be," cognate with Pers. ast "is," astan, hastan "to be."

Nemâyeš, nemâyandegi, from nemudan "to show, demonstrate, exhibit," → display