Auto-dialer
a telephone device that makes possible a service feature (au·to-dial) whereby a call is automatically made in response to a brief input signal from the user, as the pressing of a b-tton.
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- Autodidacticism
the process or practice of learning a subject without a teacher or formal education; self-education: abraham lincoln is viewed as a model of autodidacticism.
- Autodyne
a type of heterodyne circuit containing a vacuum tube or transistor that acts simultaneously as a detector and oscillator. historical examples the connections for the autodyne, or self-heterodyne, receiving set are shown in fig. 60. the radio amateur’s hand book a. frederick collins from this you will see that any regenerative set can be used […]
- Autogamy
botany. pollination of the ovules of a flower by its own pollen; self-fertilization (opposed to ). biology. conjugation in an individual organism by division of its nucleus into two parts that in turn reunite to form a zygote. historical examples meiosis in rhynchonympha in one cytoplasmic and two nuclear divisions followed by autogamy. the biotic […]
- Autogiro
an aircraft with an unpowered, horizontally rotating propeller on a shaft above the fuselage that provides lift for the machine, with forward propulsion being provided by a conventional propeller: superseded in most applications by the helicopter. historical examples climbing out of the autogiro they walked towards the center of the island where the sand was […]
- Autograft
a tissue or organ that is into a new position on the body of the individual from which it was removed. noun (surgery) a tissue graft obtained from one part of a patient’s body for use on another part autograft au·to·graft (ô’tō-grāft’) n. a tissue or an organ grafted into a new position in or […]