An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 12 Search : co-
chalco-
  خالکو-، مس-   
xâlko-, mes-

Fr.: chalco-   

A prefix meaning "copper," used in the formation of compound words.

From Gk. chalko-, combining form of chalkos "copper."

Xalco-, loan from Gk., as above.
Mes-, from mes, → copper.

co-
  هم-   
ham- (#)

Fr.: co-   

com-.

co-added image
  تصویر ِ هم‌افزوده   
tasvir-e hamafzudé

Fr.: image intégrée   

An image made up of several individual images of relatively short exposure times which are added together in order to produce a final image of higher quality.

Co-added, from → co- "together" + added p.p. of → add; → image.

Tasvir, → image; hamafzudé from ham- "together", → com-, + afzudé p.p. of afzudan, → add.

co-orbital
  هم‌مدار   
ham-madâr

Fr.: co-orbital   

Of or relating to two or more celestial bodies that share, or almost share, the same orbit.

co-; → orbital.

co-orbital motion
  جنبش ِ هم‌مداری   
jonbeš-e ham-madâri

Fr.: mouvement co-orbital   

The motion of two or more bodies around the Sun on different orbits when it takes them the same amount of time to complete one revolution. There are three possible types of co-orbital motions of a small body associated with a planet: → tadpole orbits, → horseshoe orbits, and → quasi-satellite orbits.

co-orbital; → motion.

co-orbital satellite
  ماهواره‌ی ِ هم‌مدار، بنده‌وار ِ ~   
mâhvâre-ye ham-madâr, bandevâr-e ~

Fr.: satellite co-orbital   

Any of satellites which either share the same orbit or which occupy immediately adjacent orbits that change periodically as the satellites approach one another (Ellis et al., 2007, Planetary Ring Systems, Springer).

co-orbital; → satellite.

co-orbiting
  هم‌مداری؛ هم‌مدار   
ham-madâri; ham-madâr

Fr.: co-orbitage; c-orbitant, co-orbiteur   

The action or quality of a → co-orbiting asteroid.

From co- "together," → com- + → orbit + → -ing.

From ham- "together," → com- + madârorbit + -i noun suffix.

co-orbiting asteroid
  سیارک ِ هم‌مدار   
sayyârak-e ham-madâr

Fr.: astéroïde co-orbiteur   

An asteroid having a → co-orbital motion.

co-orbiting; → asteroid.

com-, col-, con-, cor-, co-
  هم-، هن-، ها-، هَ-   
ham- (#), han- (#), hâ- (#), ha- (#)

Fr.: com-, col-, con-, cor-, co-   

Prefix denoting "together; with; joint; jointly". It is sometimes used for intensification as in complete, complain, convince.

M.E., from O.L., classical L. form cum "together, together with," Gk. koinos "common," from PIE *kom- "beside, near, by, with."

Ham- and ham "together, with; same, equally, even," Mid.Pers. ham-, like L. com- and Gk. syn- with neither of which it is cognate. O.Pers./Av. ham-, Skt. sam-, sa-; also O.Pers./Av. hama- "one and the same," Skt. sama-, Gk. homos-; originally identical with PIE numeral *sam- "one," from *som-. The Av. hąm- (nasal a) appears in various forms: ham-, han- (before gutturals, palatals, dentals) and also həm-, hən-, ha- (Bartholomae, 1772). Variants in Pers. ha- as in (Anâraki) ha-bend, → connect, and (Kurd.) hasûn "to whet, sharpen," and hâ- as in hâ-dâdan, hâ-gereftan, see Dehxodâ.

eco-
  بوم-   
bum- (#)

Fr.: éco-   

A combining form meaning "house, household, environment, nature, natural habitat."

Ultimately from Gk. oikos "house," cognate with L. villa "country house, farm," related to vicus "village, group of houses; " cf. Av. vis- "homestead, community;" O.Pers. viθ- "house, royal house, farm;" Mid.Pers. wis "village;" dialectal Pers. wiš-, vīš- "to set (of Sun)," wīs- "to enter" (Cheung 2007); Skt. viś- "settlement, house, tribe, people;" Goth. weihs "village;" Lith. viešpats "master of the house;" PIE *ueik'- "to settle (down)."

Bum-, from bum "region, land, a mansion or place where one dwells in saftey; nature, disposition;" Mid.Pers. bûm "land, earth, country;" O.Pers. būmi- "place of being/living, land, region;" Av. būmī- "earth," from bav- "to be, become, take place;" cf. Skt. bhūmi- "land, region;" PIE *bheu- "to be, come into being, become" (cf. Gk. phu- "become," phuein "to bring forth, make grow;" L. fui "I was" (perf. tense of esse), futurus "that is to be, future;" Ger. present first and second person sing. bin, bist; E. to be; O.Ir. bi'u "I am;" Lith. bu'ti "to be;" Rus. byt' "to be").

image co-adding
  هم‌افزایش ِ تصویرها   
hamafzâyeš-e tasvirhâ

Fr.: addition d'images   

The process of adding several usually low-exposure images to create an image having a significantly higher signal/noise ratio.

image; → co-; → add.

pico-
  پیکو-   
piko- (#)

Fr.: pico-   

A prefix denoting 10-12.

From It. piccolo "small."