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

A phase in the → light curve evolution of eruptive objects such as → dwarf novae, → Soft X-ray Transients, and transient → magnetars which follows the characterized sudden increase in their flux (over a factor ~ 1000 over the quiescent level). Outburst decay is slow and lasts months or years.

→ outburst; → decay.

A final product or end result; consequence; issue (Dictionary.com).

→ out; → come.

Borunšod "outcome," from borun, → out, + šod, šodan "to go, to pass, to change," → become.

Emergence of a particular rock-body, e.g. a stratium or vein, at the ground surface. Outcrops can be formed naturally or by human action. Stream erosion and highway construction can produce outcrops.

Noun use of crop out, from crop, from M.E., O.E. cropp "bird's craw," also "head or top of a sprout or herb;" → out.

Borunzad, literally "strike out," from borun, birun, → out, + zad, zadan "to strike, beat," from 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 *g^when- "to strike, kill."

Being or located on or toward the outside; external.

→ out + -er suffix of comparative degree of adjectives.

→ external.

The upper zone of the → Earth's core, just below the → mantle, extending from a depth of about 2900 km to 5100 km. It is presumed to be → liquid because it sharply reduces → compressional wave velocities and does not transmit → shear waves. Its density is from 9 to 11 g/cm³. The → temperature ranges from 4400 °C in the outer areas to 6100 °C near the → inner core. Since shear waves do not propagate through a fluid, the Earth's outer core is considered to be liquid because the shear wave velocity is zero. Convection motion within the outer core, along with the rotation of the Earth creates an effect that maintains the Earth's → magnetic field.

→ outer; → core.

A → Lindblad resonance expressed by: Ω_p = Ω + κ/m.

→ outer; → Lindblad resonance.

A planet that revolves around the Sun beyond the → asteroid belt, namely → Jupiter, → Saturn, → Uranus, and → Neptune.

→ out; → planet.

The space beyond the Earth's atmosphere.

→ outer; → space.

The act of flowing out; a fluid that flows out; any outward movement. Opposite of → inflow.

→ out + → flow.

1) General: The slow release of a gas that was trapped, frozen, absorbed or adsorbed in some material.
2) Planets: Release of the gases locked in the interior of a planet during volcanic activity so that they become part of the planet's atmosphere.

→ out + verbal noun from → gas.

1) Power which is given out by any plant or part of such plant, in the form and for the purpose required.
2) Computers: The information produced by a program or process from a specific → input.

From → out + put, from M.E. put(t)en "to push, thrust, put;" O.E. *putian.

borundâd, from borun, birun, → out, + dâd "given," p.p. of dâdan "to give" (Mid.Pers. dâdan "to give," O.Pers./Av. dā- "to give, grant, yield," akin to L. data, → datum).

The act of extending research activities beyond its current or conventional limits to a wide section of the population for educational purposes.

→ out; reach, M.E. rechen, O.E. ræcan "to extend, hold forth;" cf. O.Fris. reka, M.Du. reiken; cognate with Pers. râst, → right.

Borun-rasâni, from borun, → out, + rasâni verbal noun of rasândan "to carry, guide, send," transitive of rasidan "to reach, arrive," → access.
Hame-âmuzi, literally "teaching every body," from hamé, → all; âmuzi, from âmuxtan "to teach; learn," → teach.

To obtain under contract with an outside supplier.

→ out; → source.

The transferring of certain business functions from internal staff to outside contractors.

Verbal noun from → outsource.

Having the general form, shape, or outline of an egg; ellipsoidal or elliptical.

From M.L. ovalis "egg-shaped," from L. ovum "egg," cognate with Pers. xâg, as below.

Xâgi "egg-shaped," literally "pertaining to an egg," from xâg "egg," Lori, Laki xâ, Pash. hâ "egg," Ossetic ajk "egg," Khotanese āhaa- "egg;" variant xâyé "egg; testicle;" Mid.Pers. xâyak "egg;" Av. aēm/aiam "egg;" cf. Gk. oion, L. ovum, as above; Goth. ada; O.E. æg; Ger. Ei; PIE *owyo-/*oyyo- "egg."

An enclosed heated compartment or receptacle for cooking and heating food.

From M.E. oven, from O.E. ofen "furnace, oven;" cf. Du. oven, O.H.G. ovan, Ger. Ofen, O.Norse ofn, O.Swed. oghn, Gothic auhns.

Mid.Pers. tanur, variant tandur, Mid.Pers. tanur, Sogd. tanur "furnace, oven;" Av. tanūra-

A prefixal use of over with the sense of "over the limit," "to excess," "too much" to form verbs, adjectives, adverbs, and nouns, e.g. → overabundance; → overdense; → overestimate.

O.E. ofer, from P.Gmc. *uberi (cf. O.S. obar, O.Fris. over, O.H.G. ubar, Ger. über, Goth. ufar "over, above"), from PIE *uper; cf. Gk. hyper, preposition and adverb, "over, beyond, overmuch, above;" cognate with L. super- and Pers. abar-, as below.

Biš- "much, more; in excess; great" (from Mid.Pers. veš "more, longer; more frequently," related to vas "many, much" (Mod.Pers. bas); O.Pers. vasiy "at will, greatly, utterly;" Av. varəmi "I wish," vasô, vasə "at one's pleasure or will," from vas- "to will, desire, wish").
Abar, variant bar "on, upon, up;" Mid.Pers. abar; O.Pers. upariy "above; over, upon, according to;" Av. upairi "above, over," upairi.zəma- "located above the earth;" cf. Gk. hyper- "over, above;" L. super-; O.H.G. ubir "over;" PIE base *uper "over").

To expose a detector to too much photons, resulting in saturation.

→ over-; → expose.

Excessive exposure of a detector, → over-expose.

→ over-; → exposure.

The abundance of a chemical element exceeding a reference value, in particular compared to that of the Sun.

→ over-; → abundance.