Definition of Impression. Meaning of Impression. Synonyms of Impression

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Definition of Impression

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Centrifugal impression
Centrifugal Cen*trif"u*gal, a. [L. centrum center + fugere to flee.] 1. Tending, or causing, to recede from the center. 2. (Bot.) (a) Expanding first at the summit, and later at the base, as a flower cluster. (b) Having the radicle turned toward the sides of the fruit, as some embryos. Centrifugal force (Mech.), a force whose direction is from a center. Note: When a body moves in a circle with uniform velocity, a force must act on the body to keep it in the circle without change of velocity. The direction of this force is towards the center of the circle. If this force is applied by means of a string to the body, the string will be in a state of tension. To a person holding the other end of the string, this tension will appear to be directed toward the body as if the body had a tendency to move away from the center of the circle which it is describing. Hence this latter force is often called centrifugal force. The force which really acts on the body being directed towards the center of the circle is called centripetal force, and in some popular treatises the centripetal and centrifugal forces are described as opposing and balancing each other. But they are merely the different aspects of the same stress. --Clerk Maxwell. Centrifugal impression (Physiol.), an impression (motor) sent from a nerve center outwards to a muscle or muscles by which motion is produced. Centrifugal machine, A machine for expelling water or other fluids from moist substances, or for separating liquids of different densities by centrifugal action; a whirling table. Centrifugal pump, a machine in which water or other fluid is lifted and discharged through a pipe by the energy imparted by a wheel or blades revolving in a fixed case. Some of the largest and most powerful pumps are of this kind.
Centripetal impression
Centripetal Cen*trip"e*tal, a. [L. centrum center + petere to move toward.] 1. Tending, or causing, to approach the center. 2. (Bot.) (a) Expanding first at the base of the inflorescence, and proceeding in order towards the summit. (b) Having the radicle turned toward the axis of the fruit, as some embryos. 3. Progressing by changes from the exterior of a thing toward its center; as, the centripetal calcification of a bone. --R. Owen. Centripetal force (Mech.), a force whose direction is towards a center, as in case of a planet revolving round the sun, the center of the system, See Centrifugal force, under Centrifugal. Centripetal impression (Physiol.), an impression (sensory) transmitted by an afferent nerve from the exterior of the body inwards, to the central organ.
Impressionability Im*pres`sion*a*bil"i*ty, n. The quality of being impressionable.
Impressionableness Im*pres"sion*a*ble*ness, n. The quality of being impressionable.
Impressionism Im*pres"sion*ism, n. [F. impressionnisme.] (Fine Arts) The theory or method of suggesting an effect or impression without elaboration of the details; -- a disignation of a recent fashion in painting and etching.
Impressionist Im*pres"sion*ist, n. [F. impressionniste.] (Fine Arts) One who adheres to the theory or method of impressionism, so called.
Impressionistic Im*pres`sion*is"tic, a. Pertaining to, or characterized by, impressionism.
Impressionless Im*pres"sion*less, a. Having the quality of not being impressed or affected; not susceptible.
Neoimpressionism Ne`o*im*pres"sion*ism, n. (Painting) A theory or practice which is a further development, on more rigorously scientific lines, of the theory and practice of Impressionism, originated by George Seurat (1859-91), and carried on by Paul Signac (1863- -) and others. Its method is marked by the laying of pure primary colors in minute dots upon a white ground, any given line being produced by a variation in the proportionate quantity of the primary colors employed. This method is also known as Pointillism (stippling).
Proof impression
Proof charge (Firearms), a charge of powder and ball, greater than the service charge, fired in an arm, as a gun or cannon, to test its strength. Proof impression. See under Impression. Proof load (Engin.), the greatest load than can be applied to a piece, as a beam, column, etc., without straining the piece beyond the elastic limit. Proof sheet. See Proof, n., 5. Proof spirit (Chem.), a strong distilled liquor, or mixture of alcohol and water, containing not less than a standard amount of alcohol. In the United States ``proof spirit is defined by law to be that mixture of alcohol and water which contains one half of its volume of alcohol, the alcohol when at a temperature of 60[deg] Fahrenheit being of specific gravity 0.7939 referred to water at its maximum density as unity. Proof spirit has at 60[deg] Fahrenheit a specific gravity of 0.93353, 100 parts by volume of the same consisting of 50 parts of absolute alcohol and 53.71 parts of water,' the apparent excess of water being due to contraction of the liquids on mixture. In England proof spirit is defined by Act 58, George III., to be such as shall at a temperature of 51[deg] Fahrenheit weigh exactly the 12/13 part of an equal measure of distilled water. This contains 49.3 per cent by weight, or 57.09 by volume, of alcohol. Stronger spirits, as those of about 60, 70, and 80 per cent of alcohol, are sometimes called second, third, and fourth proof spirits respectively. Proof staff, a straight-edge used by millers to test the flatness of a stone. Proof stick (Sugar Manuf.), a rod in the side of a vacuum pan, for testing the consistency of the sirup. Proof text, a passage of Scripture used to prove a doctrine.
Reimpression Re`im*pres"sion (-pr?sh"?n), n. A second or repeated impression; a reprint.

Meaning of Impression from wikipedia

- An impression is the overall effect of something. Impression or impressions may also refer to: Colic impression, a feature of the gall bladder Duodenal...
- Impression, Sunrise (French: Impression, soleil levant) is an 1872 painting by Claude Monet first shown at what would become known as the "Exhibition...
- gallbladder fossa are two impressions, one behind the other and separated by a ridge. The one in front is a shallow colic impression, formed by the hepatic...
- A dental impression is a negative imprint of hard (teeth) and soft tissues in the mouth from which a positive reproduction (cast or model) can be formed...
- First impression or first impressions may refer to: First impression (law), legal term for (a) the initial presentation to a court of a particular question...
- The Impressions were an American music group originally formed in 1958. Their repertoire includes doo-****, gospel, soul, and R&B. The group was founded...
- Impression management is a conscious or subconscious process in which people attempt to influence the perceptions of other people about a person, object...
- Impression formation in social psychology refers to the processes by which different pieces of knowledge about another are combined into a global or summary...
- device for making an impression in wax, clay, paper, or some other medium, including an embossment on paper, and is also the impression thus made. The original...
- An artist's impression, artist's conception, artist's interpretation, or artist's rendition is the representation of an object or a scene created by an...