Having the power or quality of acting; causing change; communicating action or motion; acting; — opposed to passive, that receives; as, certain active principles; the powers of the mind.
Quick in physical movement; of an agile and vigorous body; nimble; as, an active child or animal.
In action; actually proceeding; working; in force; — opposed to quiescent, dormant, or extinct.
an active volcano
Given to action; constantly engaged in action; energetic; diligent; busy; — opposed to dull, sluggish, indolent, or inert; as, an active man of business; active mind; active zeal.
Requiring or implying action or exertion; — opposed to sedentary or to tranquil; as, active employment or service; active scenes.
Given to action rather than contemplation; practical; operative; — opposed to speculative or theoretical; as, an active rather than a speculative statesman.
Brisk; lively; as, an active demand for corn.
Implying or producing rapid action.
an active disease
an active remedy
Applied to a form of the verb; — opposed to passive. See active voice.
Applied to verbs which assert that the subject acts upon or affects something else; transitive.
Applied to all verbs that express action as distinct from mere existence or state.
(italbrac, gay sexual slang)
(italbrac, of a homosexual man) enjoying a role in anal sex in which he penetrates, rather than being penetrated by his partner
such a role in anal sex
the atmosphere of the Earth and the region of space around it
the industry concerned with aircraft, missiles, satellites and spacecraft
of, or relating to the Earth's atmosphere and nearby space
of, or relating to the science, technology and industry associated with aircraft, missiles, satellites and spacecraft
(astronomy) An asteroid possessing an orbit that crosses the orbit of the Earth and an orbital period of over one year, with semimajor axis, semimajor axes greater than 1 AU, and perihelion distances less than 1.017 AU.
(Greek, Roman mythology): The son of Zeus and Leto (or Jupiter and Latona), and the twin brother of Artemis (or Diana).<ref>Oxford Dictionary of World Mythology, Arthur Cotterell, Oxford University Press, 1986</ref> He was the god of light, music, medicine, and poetry;<ref name="Webster's c 2001">Webster's College Dictionary, Random House, 2001</ref> and prophecy, dance, manly beauty, and more.
A very handsome young man.<ref name="Webster's c 2001"/>
Space, U.S. A three-man spacecraft designed to travel to and land on the moon.
A town in Pennsylvania, USA.
A butterfly (Parnassius apollo, a large swallowtail with black and red spots on white wings).
Biblical Hebrew name meaning literally "lion of God", and used also in reference to the city of Jerusalem.
Name of a spirit in the play The Tempest by Shakespeare.
Name of the twelfth and brightest moon of the planet Uranus.
(given name, male), often borrowed from Spanish usage.
(given name, female), mostly of persons born after 1970.
A member of the crew of a spaceship or other spacecraft, or someone trained for that purpose