Fr.: soleil actif
The Sun during its 11-year cycle of activity when spots, flares, prominences, and variations in radiofrequency radiation are at a maximum.
1) The doctrine or practice of vigorous action or involvement as a
means of achieving political or other goals, sometimes by
demonstrations, protests, etc. (Dictionary.com). See also
An especially active, vigorous advocate of a cause, especially a political cause (Dictionary.com).
Agent noun from → activism.
For a radioactive substance, the average number of atoms disintegrating per unit time.
Activity, from → active + -ity.
Žirandegi, noun from žirandé, → active.
1) One who takes part; a participant.
1) Existing in act or fact; real.
M.E. actuel, from O.Fr. actuel "now existing, up to date," from L. actualis "active, pertaining to action," adj. form of actus, → act.
Žirvand, from žir, → act, + -vand a suffix forming adjectives denoting "possessed of, similarity, relation," variants -âvand, -van (e.g. xodâvand "possessor, master," pulâdvand "hard as steel, name of a hero," dowlatvand "rich," setarvan "mule-like, barren," polvan "bridge-like, a raised path"), from Mid.Pers. -âwand (hunarâwand "skilled," warzâwand "powerful"); Av. -vant (aurvant- "swift," surunvant- "audible"); cf. Skt. -vant (amavant- "having attacking power").
1) The quality or state of being actual or something that is actual; reality.
The act or process of actualizing.
žirvandidan, žrivand kardan
To make actual or real; turn into action or fact.
Fr.: actionner, déclencher
1) To put into mechanical action or motion.
From L. actuatus, p.p. of actuare, from actus, → act.
Fr.: actionnement, déclenchement
The act or process of putting into action; activation.
Verbal noun of → actuate.
A mechanism to activate process control equipment by use of pneumatic, hydraulic, or electronic signals.
Fr.: facteur d'amplification
1) Electronics: The extent to which an
→ analogue → amplifier
boosts the strength of a → signal. Also called
angle of refraction
zâviye-yé šekast (#)
Fr.: angle de réfraction
The angle between the direction in which a ray is refracted and the normal to the refracting surface.
Of or pertaining to an → apogalacticon.
The point at which a celestial body is farthest from the center of a galaxy; opposite of → perigalacticon.
Fr.: objet fabriqué, artefact
1) An object made by a human being, typically one of cultural or historical
Fr.: réfraction astronomique
Fr.: réfraction atmosphérique
The shift in apparent direction of a celestial object caused by the bending of light while passing through the Earth's atmosphere. Since the density of the atmosphere decreases with altitude, the starlight will bend more as it continues down through the atmosphere. As a result, a star will appear higher in the sky than its true direction.
Fr.: facteur d'atténuation
The ratio of the radiation intensity after traversing a layer of matter to its intensity before.