Artificial gene
a duplicate gene synthesized in the laboratory by combining nucleotides in a sequence characteristic of the copied gene.
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- Artificial gravity
a simulated gravity or sensation of weight established within a spacecraft by means of the craft’s rotation, acceleration, or deceleration. Historical Examples The artificial gravity induced a sense of security as absolute as though the ship were resting on living rock. The Star Lord Boyd Ellanby Mr. Wordsley’s eyes protruded from that unbearable weight, and […]
- Artificial harmonics
harmonics of a note produced on a stringed instrument by lightly touching a stopped sounded string. Historical Examples Whole passages are written for this form of artificial harmonics. Chats to ‘Cello Students Arthur Broadley
- Artificial heart
any of various four-chambered devices, modeled on the human heart, that pump blood by attachment to a power source and that are constructed for temporary external use or for implantation as a temporary or permanent heart replacement. artificial heart n. A mechanical pump used to replace the function of a damaged heart, either temporarily or […]
- Artificial horizon
a level, as a surface of mercury, used in determining the altitudes of stars. Compare (def 35). the bubble in a sextant or octant for aerial use. Also called flight indicator, gyro horizon. Aeronautics. an instrument that indicates the banking and pitch of an aircraft with respect to the horizon. Historical Examples It may be […]
- Artificial insemination
the injection of semen into the vagina or uterus by means of a syringe or the like rather than by coitus. Abbreviation: AI. Contemporary Examples Lo and behold, Jane Muslim runs to her imam for a faith check on whether she can do artificial insemination or not. All-American Muslim: Why Advertisers Are Right to Boycott […]