Definition of axis

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Axis (n.) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon..

Lern More About Axis

Gnomon :: Gnomon (n.) The style or pin, which by its shadow, shows the hour of the day. It is usually set parallel to the earth's axis..
Fly :: Fly (v. i.) Two or more vanes set on a revolving axis, to act as a fanner, or to equalize or impede the motion of machinery by the resistance of the air, as in the striking part of a clock..
Inflexed :: Inflexed (a.) Bent or turned abruptly inwards, or toward the axis, as the petals of a flower..
Barker''s Mill :: Barker's mill () A machine, invented in the 17th century, worked by a form of reaction wheel. The water flows into a vertical tube and gushes from apertures in hollow horizontal arms, causing the machine to revolve on its axis..
Chittra :: Chittra (n.) The axis deer of India.
Rotation :: Rotation (n.) The act of turning, as a wheel or a solid body on its axis, as distinguished from the progressive motion of a revolving round another body or a distant point; thus, the daily turning of the earth on its axis is a rotation; its annual motion round the sun is a revolution..
Quadrature :: Quadrature (a.) The act of squaring; the finding of a square having the same area as some given curvilinear figure; as, the quadrature of a circle; the operation of finding an expression for the area of a figure bounded wholly or in part by a curved line, as by a curve, two ordinates, and the axis of abscissas..
Prophylaxis :: Prophylaxis (n.) The art of preserving from, or of preventing, disease; the observance of the rules necessary for the preservation of health; preservative or preventive treatment..
Induplicate :: Induplicate (a.) Having the edges rolled inward and then arranged about the axis without overlapping; -- said of leaves in vernation.
Myelencephalon :: Myelencephalon (n.) The brain and spinal cord; the cerebro-spinal axis; the neuron. Sometimes abbreviated to myelencephal.
Equatorial :: Equatorial (n.) An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel to the axis of the earth, and each carrying a graduated circle, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known. The motion in right ascension is sometimes communicated by clockw
Anteversion :: Anteversion (n.) A displacement of an organ, esp. of the uterus, in such manner that its whole axis is directed further forward than usual..
Rotary :: Rotary (a.) Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary motion..
Run :: Run (a.) To turn, as a wheel; to revolve on an axis or pivot; as, a wheel runs swiftly round..
Elevation :: Elevation (n.) The movement of the axis of a piece in a vertical plane; also, the angle of elevation, that is, the angle between the axis of the piece and the line o/ sight; -- distinguished from direction..
Latus Rectum :: Latus rectum () The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis. See Focus, and Parameter..
Prism :: Prism (n.) A form the planes of which are parallel to the vertical axis. See Form, n., 13..
Raceme :: Raceme (n.) A flower cluster with an elongated axis and many one-flowered lateral pedicels, as in the currant and chokecherry..
Monostichous :: Monostichous (a.) Arranged in a single row on one side of an axis, as the flowers in grasses of the tribe Chloridae..
Induplicate :: Induplicate (a.) Having the edges bent abruptly toward the axis; -- said of the parts of the calyx or corolla in aestivation.
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