associated molecular cloud
abr-e molekuli-ye âhazidé
Fr.: nuage moléculaire associé
A → molecular cloud that is physically or apparently related to a star formation region.
âhazeš; anjoman (#)
1) The act of associating, → associate;
the state of being associated.
Association, noun from → associate.
Âhazeš, verbal noun of → âhazidan→ associate. Anjoman, for the meaning 3, from Mid.Pers. anjaman, from Av. han-jamana, from han- "together" + jamana, from gam- "to come;" cf. Skt. samgamana "gathering together."
Fr.: membre d'une association
A celestial body making part of an astronomical association.
1) Of, characterized by, resulting from, or causing association.
Adj. from associate.
Fr.: algèbre associative
An algebra whose multiplication is associative.
Fr.: axiome d'associativité
A basic rule in → group theory stating that if a, b and c are members of a group then (a * b) * c and a * (b * c) are members of the group.
Fr.: loi associative
In mathematics, the rule that states that the result of two identical operations is independent of the sequence of these operations. For ex., in the addition operation, a + (b + c) = (a + b) + c = a + b + c. Multiplication of numbers is also associative.
Of or relating to association; state of being associative.
âgarbidan, farz kardan, farzidan (#)
To take as granted or true; suppose.
M.E., from L. assumere "to take up," from ad- "to, up" + sumere "to take," from sub "under" + emere "to take."
Âgarbidan, from âgarb, → assumption.
âgarb, farz (#)
A fact or statement (as a proposition, axiom, postulate, or notion) taken for granted.
M.E., from L.L. assumption, assumptio "taking up," from L. assumere, → assume.
Âgarb, from â-, nuance prefix, +
garb, from Av./O.Pers. grab-, Av. gərəb-
"to take, to seize;" cf. Mod.Pers. gereftan "to take; to assume;"
Skt. grah-, grabh- "to seize, to take,"
graha "seizing, holding, perceiving;" M.L.G. grabben "to grab;"
E. grab "to take or grasp suddenly;" PIE *ghrebh- "to seize."
A positive declaration intended to give confidence; promise or pledge; guaranty; surety (Dictionary.com).
1) To declare earnestly to; inform or tell positively; state with confidence to.
A small starlike symbol (*), used in printing or writing as a reference mark, as an indication of the omission of letters or words, to denote a hypothetical linguistic form, or for various arbitrary meanings.
M.E. astarisc, from L.L. asteriscus, from Gk. asteriskos "small star," from aster-, → astro- + -ikos "diminutive suffix."
Axtarak, from axtar "star" → astro- + -ak "diminutive suffix."
A group of stars in the sky which are traditionally imagined to present a pattern within a → constellation. Examples include the → Big Dipper, the → Northern Cross, the → Square of Pegasus, and → Orion's Belt.
Axtargân, from axtar "star" → astro- + -gân suffix denoting collective nature.
1) sayyârak (#); 2) axtarvâr
1) A small rocky object orbiting the Sun. There are millions of asteroids
moving in orbits in the main → asteroid belt,
between → Mars and → Jupiter
and in the → Kuiper belt.
The largest and the first discovered, → Ceres,
about 1,000 km in size, is now classified as → dwarf planet
(2006 IAU General Assembly).
The largest asteroid in the solar system (Ceres apart), is → Pallas,
with a size of 582 × 556 × 500 km.
On the other hand, the smallest asteroid ever studied is the 2 meters space rock 2015 TC25,
which was observed when it made a close flyby of Earth in October 2015.
See also → near-Earth asteroid;
→ binary asteroid.
Fr.: ceinture des astéroïdes
The region of the → solar system located between → Mars and → Jupiter where over a million objects bigger than 1 km across orbit the Sun. Another region populated by minor bodies lies beyond the orbit of → Neptune, the → Kuiper belt.
Fr.: désignation des astéroïdes
1) For an asteroid whose orbit is precisely known, a number and optionally
a proper name, e.g. (7) Iris, (24101) Cassini, (99942) Apophis.
Fr.: famille d'astéroïde
A group of asteroids that share the same or similar proper orbital elements (semi-major axis, eccentricity, inclination). In 1918, the Japanese astronomer K. Hirayama first recognized some non random concentrations of asteroid elements. He noticed that certain "groups" of asteroids had similar orbital elements, and hence he first introduced the concept of "asteroid families," and identified three of them: Koronos, Eos, and Themis. The names of these groups were chosen by the parent (brightest) asteroid that the smaller group asteroids follow. Some of the more common asteroid families include the Trojans, which are actually not an asteroid family, but a group of asteroids caught in the Sun-Jupiter gravitational equilibrium points known as L3 and L4 → Lagrangian points.
Fr.: recherche systématique d'astéroïdes
Of or relating to → asteroseismology.