Density and Gravity

Density

The mass density or density of a material is its mass per unit volume. The symbol most often used for density is ρ (the lower case Greek letter rho).

density n 1: the amount per unit size [syn: {denseness}] 2: the spatial property of being crowded together [syn: {concentration}, {denseness}, {compactness}] [ant: {distribution}]

71 Moby Thesaurus words for "density": asininity, blockishness, body, boobishness, boorishness, bovinity, callosity, callousness, cloddishness, concreteness, crassness, crudeness, denseness, dim-wittedness, dimness, doltishness, dull-wittedness, dullardism, dullness, dumbness, duncery, durability, durity, firmness, flintiness, grossness, hardness, hardness of heart, hebetude, impenetrability, induration, lethargy, loutishness, lumpishness, mass, materiality, ninnyism, oafdom, oafishness, obduracy, obtuseness, opacity, palpability, ponderability, resistance, restiveness, simpletonianism, slowness, sluggishness, solidity, sottishness, soundness, stability, steadiness, steeliness, stolidity, stoniness, stoutness, strength, stupidity, sturdiness, substance, substantiality, substantialness, tangibility, thick-headedness, thick-wittedness, toughness, unteachability, wrongheadedness, yokelism

Density \Den"si*ty\ (d[e^]n"s[i^]*t[y^]), n. [L. densitas; cf. F. densit['e].] 1. The quality of being dense, close, or thick; compactness; -- opposed to {rarity}. [1913 Webster] 2. (Physics) The ratio of mass, or quantity of matter, to bulk or volume, esp. as compared with the mass and volume of a portion of some substance used as a standard. [1913 Webster] Note: For gases the standard substance is hydrogen, at a temperature of 0[deg] Centigrade and a pressure of 760 millimeters. For liquids and solids the standard is water at a temperature of 4[deg] Centigrade. The density of solids and liquids is usually called specific gravity, and the same is true of gases when referred to air as a standard. [1913 Webster] 3. (Photog.) Depth of shade. --Abney. [1913 Webster]

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Gravity

Gravitation, or gravity, is a natural phenomenon by which physical bodies attract each other with a force proportional to their masses.

gravity n 1: (physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface; "the more remote the body the less the gravity"; "the gravitation between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them"; "gravitation cannot be held responsible for people falling in love"--Albert Einstein [syn: {gravitation}, {gravitational attraction}, {gravitational force}] 2: a manner that is serious and solemn [syn: {graveness}, {sobriety}, {soberness}, {somberness}] 3: a solemn and dignified feeling [syn: {solemnity}] [ant: {levity}]

129 Moby Thesaurus words for "gravity": G, G suit, acuteness, adduction, affinity, allurement, apogeotropism, attractance, attraction, attractiveness, attractivity, augustness, avoirdupois, beef, beefiness, bleakness, buckram, capillarity, capillary attraction, centripetal force, ceremonial, ceremoniousness, ceremony, courtliness, darkness, deadweight, decorousness, demureness, dignifiedness, dignity, dismalness, drag, draw, dreariness, earnestness, elevation, exigency, extrinsicality, fatness, form, formality, formalization, geotropism, gloom, gloominess, grandeur, gravitation, graviton, grimness, gross weight, heaviness, heft, heftiness, immediacy, impersonality, importance, kingliness, liveweight, loftiness, long face, lordliness, magnetism, magnitude, majesty, mass, moderation, momentousness, mutual attraction, neat weight, net, net weight, no joke, no laughing matter, nobility, overbalance, overweight, pomp, pomposity, ponderability, ponderosity, ponderousness, poundage, pride of bearing, pride of place, primness, princeliness, proud bearing, pull, pulling power, regality, reserve, rigidness, ritual, rituality, sedateness, seriousness, severity, significance, sober-mindedness, soberness, sobersidedness, sobersides, sobriety, solemnity, solemnness, somberness, specific gravity, staidness, starchiness, stateliness, stiffness, stiltedness, straight face, stylization, sublimity, sympathy, temperance, thoughtfulness, tonnage, traction, tug, underweight, urgency, venerability, wearifulness, wearisomeness, weight, weightiness, worthiness

Gravity \Grav"i*ty\, n.; pl. {Gravities}. [L. gravitas, fr. gravis heavy; cf. F. gravit['e]. See {Grave}, a., {Grief}.] 1. The state of having weight; beaviness; as, the gravity of lead. [1913 Webster] 2. Sobriety of character or demeanor. ``Men of gravity and learning.'' --Shak. [1913 Webster] 3. Importance, significance, dignity, etc; hence, seriousness; enormity; as, the gravity of an offense. [1913 Webster] They derive an importance from . . . the gravity of the place where they were uttered. --Burke. [1913 Webster] 4. (Physics) The tendency of a mass of matter toward a center of attraction; esp., the tendency of a body toward the center of the earth; terrestrial gravitation. [1913 Webster] 5. (Mus.) Lowness of tone; -- opposed to {acuteness}. [1913 Webster] {Center of gravity} See under {Center}. {Gravity battery}, See {Battery}, n., 4. {Specific gravity}, the ratio of the weight of a body to the weight of an equal volume of some other body taken as the standard or unit. This standard is usually water for solids and liquids, and air for gases. Thus, 19, the specific gravity of gold, expresses the fact that, bulk for bulk, gold is nineteen times as heavy as water. [1913 Webster]

Gravity, IA (city, FIPS 32520) Location: 40.76013 N, 94.74278 W Population (1990): 218 (103 housing units) Area: 0.8 sq km (land), 0.0 sq km (water) Zip code(s): 50848

Data Sources:

  • density: WordNet (r) 2.0
  • density: Moby Thesaurus II by Grady Ward, 1.0
  • density: The Collaborative International Dictionary of English v.0.44
  • gravity: WordNet (r) 2.0
  • gravity: Moby Thesaurus II by Grady Ward, 1.0
  • gravity: The Collaborative International Dictionary of English v.0.44
  • gravity: U.S. Gazetteer (1990)

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