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autobahn

an expressway or superhighway in a German-speaking country.

Autobiography

A biography written by the subject of it; memoirs of one's life written by one's self.

Autocarpian Autocarpous

Consisting of the ripened pericarp with no other parts adnate to it, as a peach, a poppy capsule, or a grape.

Autocatalysis

Self-catalysis; catalysis of a substance by one of its own products, as of silver oxide by the silver formed by reduction of a small portion of it.

Autocephalous

Having its own head; independent of episcopal or patriarchal jurisdiction, as certain Greek churches.

Autochronograph

An instrument for the instantaneous self-recording or printing of time.

Autochthon

One who is supposed to rise or spring from the ground or the soil he inhabits; one of the original inhabitants or aborigines; a native; -- commonly in the plural. This title was assumed by the ancient Greeks, particularly the Athenians.

Autoclastic

Broken in place; -- said of rocks having a broken or brecciated structure due to crushing, in contrast to those of brecciated materials brought from a distance.

Autoclave

A kind of French stewpan with a steam-tight lid.

Autocoherer

A self-restoring coherer, as a microphonic detector.

autocoid

any physiologically active internal secretion, especially one of uncertain classification.

Autocracy

Independent or self-derived power; absolute or controlling authority; supremacy.

Autocrat

An absolute sovereign; a monarch who holds and exercises the powers of government by claim of absolute right, not subject to restriction; as, Autocrat of all the Russias (a title of the Czar).

Autocratical Autocratic

Of or pertaining to autocracy or to an autocrat; absolute; holding independent and arbitrary powers of government.

Autocratrix

A female sovereign who is independent and absolute; -- a title given to the empresses of Russia.

Autodynamic

Supplying its own power, as a hydraulic ram.

Autoecious

Passing through all its stages on one host, as certain parasitic fungi; -- contrasted with heter/cious.

autoerotic

sexually self-satisfying, as by masturbation.

Autogamous

Characterized by autogamy; self-fertilized.

Autogamy

Self-fertilization, the fertilizing pollen being derived from the same blossom as the pistil acted upon.

autogenics

training patients in self-induced relaxation.

Autograph

In one's own handwriting; as, an autograph letter; an autograph will.

Autography

The science of autographs; a person's own handwriting; an autograph.

autogyro

an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller.

Autoharp

A zitherlike musical instrument, provided with dampers which, when depressed, deaden some strings, leaving free others that form a chord.

Autohypnotic

Pert. to autohypnotism; self-hypnotizing. An autohypnotic person.

Autohypnotism

Hypnotism of one's self by concentration of the attention on some object or idea.

Autokinesis

Spontaneous or voluntary movement; movement due to an internal cause.

autolysis

lysis of cells or tissues due to enzymatic activity from within the cell, as contrasted with externally induced lysis.

autolytic

of, pertaining to, or causing autolysis.

automat

a vending machine from which you can get food.

automate

make automatic; to change [a process] so that it is mostly automatic; to substitute machinery for human labor in an activity.

automated

accomplished by machinary without the intervention of a human operator; -- of processes.

Automatism

The state or quality of being automatic; the power of self-moving; automatic, mechanical, or involuntary action. A theory as to the activity of matter.

Automaton

Any thing or being regarded as having the power of spontaneous motion or action.

Automobile

a self-propelled vehicle used for transporting passengers, suitable for use on a street or roadway. Many diferent models of automobiles have beenbuilt and sold commercially, possessing varied features such as a retractable roof (in a convertible), different braking systems, different propulsion systems, and varied styling. Most models have four wheels but some have been built with three wheels. Automobiles are usually propelled by internal combustion engines (using volatile inflammable liquids, as gasoline or petrol, alcohol, naphtha, etc.), and sometimes by steam engines, or electric motors. The power of the driving motor varies from under 50 H. P. for earlier models to over 200 H. P. larger models or high-performance sports or racing cars. An automobile is commonly called a car or an auto, and generally in British usage, motor cars.

Automobilism

The use of automobiles, or the practices, methods, or the like, of those who use them.

Autonomasy

The use of a word of common or general signification for the name of a particular thing; as, /He has gone to town,/ for, /He has gone to London./

Autonomic

Having the power of self-government; autonomous.

Autonomous

Independent in government; having the right or power of self-government.

Autonomy

The power or right of self-government; self-government, or political independence, of a city or a state.

Autopathic

Dependent upon, or due or relating to, the structure and characteristics of the diseased organism; endopathic; as, an autopathic disease; an autopathic theory of diseases.

Autophagi

Birds which are able to run about and obtain their own food as soon as hatched.

Autophagy

The feeding of the body upon itself, as in fasting; nutrition by consumption of one's own tissues.

Autophoby

Fear of one's self; fear of being egotistical.

Autophony

An auscultatory process, which consists in noting the tone of the observer's own voice, while he speaks, holding his head close to the patient's chest.

autopilot

a device that automatically keeps ships or planes or spacecraft on a steady course.

Autoplasty

The process of artificially repairing lesions by taking a piece of healthy tissue, as from a neighboring part, to supply the deficiency caused by disease or wounds.

Autopneumatic

Acting or moving automatically by means of compressed air.

Autopsorin

That which is given under the doctrine of administering a patient's own virus.

Autopsy

Personal observation or examination; seeing with one's own eyes; ocular view.

Autoptical Autoptic

Seen with one's own eyes; belonging to, or connected with, personal observation; as, autoptic testimony or experience.

Autoptically

By means of ocular view, or one's own observation.

Autoradiogram

an image produced upon photographic film by exposure of the film to a radioactive substance in close proximity to (usually in contact with) the film.

Autoradiography

the process of producing an autoradiogram by exposing photographic film to a radioactive substance in close proximity to the film.

Autostability

Automatic stability; also, inherent stability. An a/roplane is inherently stable if it keeps in steady poise by virtue of its shape and proportions alone; it is automatically stable if it keeps in steady poise by means of self-operative mechanism.

autostrada

an expressway in an Italian-speaking country.

Autostylic

Having the mandibular arch articulated directly to the cranium, as in the skulls of the Amphibia.

Autosuggestion

Self-suggestion as distinguished from suggestion coming from another, especially in hypnotism. Autosuggestion is characteristic of certain mental conditions in which expectant belief tends to produce disturbance of function of one or more organs.

autotelism

belief that a work of art is an end in itself or its own justification.

autotomy

spontaneous removal or casting off of a body part (as the tail of a lizard or claw or a lobster) especially when the organism is injured or under attack.

Autotoxic

Pertaining to, or causing, autotox/mia.

Autotransformer

A transformer in which part of the primary winding is used as a secondary winding, or vice versa; -- called also a compensator or balancing coil.

autotroph

an organism which is autotrophic, i. e., an organism (such as most plants and certain microorganisms) which are capable of synthesizing its own food from simple organic substances, requiring only minerals as nutrients for growth, and using carbonate or carbon dioxide as a source of carbon and simple inorganic nitrogen as a nitrogen source; the energy required is derived from photosynthesis or chemosynthesis. Opposed to heterotroph. See also auxotroph.

Autotrophic

Capable of self-nourishment; requiring only minerals for growth; using carbonate or carbon dioxide as a source of carbon and simple inorganic nitrogen as a nitrogen source; -- said of all plants in which photosynthetic activity takes place, and certain bacteria. It is opposed to parasitism or saprophytism.

Autotropism

The tendency of plant organs to grow in a straight line when uninfluenced by external stimuli.

Autotypography

A process resembling /nature printing,/ by which drawings executed on gelatin are impressed into a soft metal plate, from which the printing is done as from copperplate.

Autotypy

The art or process of making autotypes.

Autumn

The third season of the year, or the season between summer and winter, often called /the fall./ Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November.

Autumnal

Of, belonging to, or peculiar to, autumn; as, an autumnal tint; produced or gathered in autumn; as, autumnal fruits; flowering in autumn; as, an autumnal plant.

Autunite

A lemon-yellow phosphate of uranium and calcium occurring in tabular crystals with basal cleavage, and in micalike scales. H., 2-2.5. Sp. gr., 3.05-3.19.

Auxanometer

An instrument to measure the growth of plants.

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