An Etymological Dictionary of Astronomy and Astrophysics

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory



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Number of Results: 742
bâzcâp (#)

Fr.: ré-impression   

A reproduction in print of matter already printed.

re- + → print.


Fr.: reproduire   

1) To produce again or anew.
2) To produce a copy, imitation, or representation of.
3) To generate (offspring) by sexual or asexual means (

re-; → produce.


Fr.: reproduction   

1) The act of reproducing or the condition or process of being reproduced.
2) Something reproduced, especially in the faithfulness of its resemblance to the form and elements of the original.
3) Biology: Any of various processes, either sexual or asexual, by which an animal or plant produces one or more individuals similar to itself (

reproduce; → -tion.

vâzadan (#)

Fr.: repousser   

To drive back; to repel.
repulsion, → repulsive force, → repulsive gravity.

M.E., from L. repulsus, p.p. of repellere, from → re- "back" + pellere "to drive, strike, push."

Vâzadan "to repulse," from vâ-re- + zadan "to strike, beat; to play an instrument; to do" (Mid.Pers. zatan, žatan; O.Pers./Av. jan-, gan- "to strike, hit, smite, kill" (jantar- "smiter"); cf. Skt. han- "to strike, beat" (hantar- "smiter, killer"); Gk. theinein "to strike;" L. fendere "to strike, push;" Gmc. *gundjo "war, battle;" PIE *gwhen- "to strike, kill").

vâzaneš (#)

Fr.: répulsion   

Physics: The force that acts between bodies of like electric charge or magnetic polarity, tending to separate them.

Verbal noun of → repulse.

vâzanadé (#)

Fr.: répulsif   

Capable of causing → repulsion.
repulsive force, → repulsive gravity.

repulsive; → -ive.

repulsive force
  نیروی ِ وازننده   
niru-ye vâzanandé

Fr.: force répulsive   

The force by which bodies repel one another. → repulsion.

Repulsive, adj. of → repulse; → force.

repulsive gravity
  گرانی ِ وازننده   
gerâni-ye vâzanadé

Fr.: gravité répulsive   

In → general relativity, the gravity resulting from a → negative pressure. See also → cosmological constant.

repulsive; → gravity.

  ۱) پژوهش؛ ۲) پژوهیدن   
1) pažuheš (#); 2) pažuhidan (#)

Fr.: 1) recherche; 2) rechercher   

1) (n.) A systematic inquiry or investigation into a subject in order to discover or establish or revise facts, theories, applications, etc.
2) (v.) To carry out research into a subject.

From M.Fr. recerche, from O.Fr. recercher "to seek out, search closely," from → re-, intensive prefix, + cercher "to seek for," from L. circare "to go about, wander, traverse," from circuscircle.

Pažuheš, verbal noun of pažuhidan "to search;" Mid.Pers. wizôy- "to examine, investigate;" ultimately from Proto-Iranian *pati-iud-, from *pati- "agaist, back, opposite to, toward, face to face, in front of (cf. O.Pers. paity; Av. paiti; Skt. práti; Pali pati-; Gk. proti, pros "face to face with, toward, in addition to, near;" PIE base *proti) + *iud- "to struggle for something, to fight (Av. yūδ- "to fight, struggle;" Mod.Pers. justan, juy- "to search, seek, ask for"); cf. Mid.Pers. vijuyihitan "to search, seek."

research and development
  پژوهش و گوالش   
pažuheš o govâleš

Fr.: recherche et développement   

Systematic activity combining both basic and applied research, and aimed at discovering solutions to problems or creating new goods and knowledge. (

research; → development.

research director
  راشتار ِ پژوهش   
râštâr-e pažuheš

Fr.: directeur de recherche   

A person who has the quality of guiding, regulating, or controlling the work of other researchers.

research; → director.

research reactor
  واژیرگر ِ پژوهشی   
vâžirgar-e pažuheši

Fr.: réacteur de recherche   

A nuclear reactor designed for radionuclide production, materials testing, and training.

research; → reactor.

pažuhešgar (#)

Fr.: chercheur   

A scientist who devotes himself to doing research.

Agent noun, from → research + → -or.


Fr.: réseau   

A grid of fine lines photographed onto or cut into a glass plate and used as a reference for astronomical observations.

From Fr. réseau, O.Fr. reseuil "little net," from raiz "net," from L. rete "net."

Rezo, loan from Fr., as above.


Fr.: résider   

To dwell permanently or for a considerable time.

M.E., from M.Fr. resider and directly from L. residere "sit down, settle; remain behind, rest," from → re- "back, again" + sedere "to sit," cognate with Pers. nešastan "to sit down," as below.

Neštidan, from Baluci ništ-, Kurd. ništin, Gurani nîšt, Awromani ništay-, Gazi ništ, Shahmerzadi -ništ, Gilaki ništoen "to sit down," variant of Pers. nešastan "to sit down, settle down," nešim "nest," Mid.Pers. nišastan "to sit;" O.Pers. nišādayam [1 sg.impf.caus.act.] "to sit down, to establish," hadiš- "abode;" Av. nišasiiā [1 sg.subj.acr.] "I shall sit down," from nihad- "to sit down," from → ni- "down, below," + had- "to sit;" PIE base *sed- "to sit;" cf. Skt. sad- "to sit," sidati "sits;" Gk. hezomai "to sit," hedra "seat, chair;" L. sedere "to sit;" O.Ir. suide "seat, sitting;" Welsh sedd "seat;" Lith. sedmi "to sit;" Rus. sad "garden;" Goth. sitan, Ger. sitzen; E. sit.

  ۱) نشتگاه؛ ۱،۲) نشتمان   
1) neštgâh; 1,2) neštmân

Fr.: résidence   

1) The place, especially the house, in which a person lives or resides; dwelling place; home.
2) The act or fact of residing (

reside; → -ence.

Neštgâh, from nešt present stem of neštidanreside + -gâh a suffix of place and time. Neštmân with -mân a suffix of verbl nouns used with present and past stems, as in zâymân, câymân, sâxtemân, sâzmân, goftemân, râžmân.

  نشتنده، نشتگر   
neštandé, neštgar

Fr.: résident   

A person who resides in a place.

reside + -ent, a suffix, equivalent to -ant froming nouns and adjectives.


Fr.: résiduel   

Of, relating to, or remaining as a residue; leftover.

residue; → -al.

residual field
  میدان ِ موندکی   
meydân-e mundaki

Fr.: champ résiduel   

The magnetic field left in an iron core after excitation has been removed.

residual; → field.


Fr.: résidu   

1) General: Something that remains after a process involving the removal of part of the original has been completed.
2) Math.: If f(z) is a → complex function, its residue at an isolated → singularity  z0 is defined by the → integral (1/2πi) ∫f(z)dz taken along a simple closed curve interior to an annulus about z0.

M.E., from O.Fr. residu, from L. residuum "a remainder," neuter of residuus "remaining, left over," from residere "to remain behind."

Munak, from mun-, dialectal variant of mân-/mândan "to remain" (e.g., Farizani mundä, Gazi mun-, Khunsâri mûn-, Natanzi, Semnâni -mund, Yghnobi mun-), Mid.Pers. mân-/mândan "to remain, to stay;" O.Pers. mān "to remain, dwell;" Av. mān- "to remain, dwell;" cognate with E. → remain; + relation/diminution suffix -ak.

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