Underground Railroad Underground Railway | secret aid to escaping slaves that was provided by abolitionists in the years before the American Civil War |
categorization categorisation classification compartmentalization compartmentalisation assortment | the act of distributing things into classes or categories of the same type |
sorting | grouping by class or kind or size |
classification | restriction imposed by the government on documents or weapons that are available only to certain authorized people |
cable railway funicular funicular railway | a railway up the side of a mountain pulled by a moving cable and having counterbalancing ascending and descending cars |
car railcar railway car railroad car | a wheeled vehicle adapted to the rails of railroad, three cars had jumped the rails |
cog railway rack railway | railway for steep mountains, a cogwheel on the locomotive engages cogs on a center rail to provide traction |
dumb bomb gravity bomb | a bomb that falls because of gravity and is not guided to a target |
elevated railway elevated railroad elevated el overhead railway | a railway that is powered by electricity and that runs on a track that is raised above the street level |
gravimeter gravity meter | a measuring instrument for measuring variations in the gravitational field of the earth |
line railway line rail line | the road consisting of railroad track and roadbed |
locomotive engine locomotive engine railway locomotive | a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks |
marshalling yard | a railway yard in which trains are assembled and goods are loaded |
railroad track railroad railway | a line of track providing a runway for wheels, he walked along the railroad track |
railway railroad railroad line railway line railway system | line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight |
railway junction | a junction where two or more railway lines meet or cross |
railway station railroad station railroad terminal train station train depot | terminal where trains load or unload passengers or goods |
scenic railway | small railway in an amusement park |
yard railway yard railyard | an area having a network of railway tracks and sidings for storage and maintenance of cars and engines |
graveness gravity sobriety soberness somberness sombreness | a manner that is serious and solemn |
specific gravity | the density of a substance relative to the density of water |
classification system | a system for classifying things |
Dewey decimal classification Dewey decimal system decimal system of classification | a system used by libraries to classify nonfictional publications into subject categories, the subject is indicated by a three-digit numeral and further specification is given by numerals following a decimal point, publications are shelved by number |
hierarchical classification system | a classification system where entries are arranged based on some hierarchical structure |
classification categorization categorisation sorting | the basic cognitive process of arranging into classes or categories |
sorting algorithm | an algorithm for sorting a list |
theory of gravitation theory of gravity gravitational theory Newton's theory of gravitation | (physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them |
sort program sorting program | a utility program that sorts data items |
gravity wave gravitation wave | (physics) a wave that is hypothesized to propagate gravity and to travel at the speed of light |
gravity solemnity | a solemn and dignified feeling |
classification categorization categorisation | a group of people or things arranged by class or category |
center of gravity centre of gravity | the point within something at which gravity can be considered to act, in uniform gravity it is equal to the center of mass |
normal fault gravity fault common fault | an inclined fault in which the hanging wall appears to have slipped downward relative to the footwall |
trainman railroader railroad man railwayman railway man | an employee of a railroad |
gravity gravitation gravitational attraction gravitational force | (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 |
solar gravity | the gravity of the sun, solar gravity creates extreme pressures and temperatures |
gravity-assist | (spaceflight) a trajectory that passes close to a planetary body in order to gain energy from its gravitational field |
sort sorting | an operation that segregates items into groups according to a specified criterion, the bottleneck in mail delivery is the process of sorting |
gravity gradient | a gradient in the gravitational forces acting on different parts of a nonspherical object, the gravity gradient of the moon causes the ocean tides on Earth |
c bulge bump hump swelling gibbosity gibbousness jut prominence protuberance protrusion extrusion excrescence a caa | something that bulges out or is protuberant or projects from its surroundings, the gun in his pocket made an obvious bulge, the hump of a camel, he stood on the rocky prominence, the occipital protuberance was well developed, the bony excrescence between its horns |
dowager's hump | abnormal spinal curvature that results when osteoporosis causes the spine to collapse, seen most often in elderly women |
sleep together roll in the hay love make out make love sleep with get laid have sex know do it be intimate have intercourse have it away have it off screw fuck jazz eff hump lie with bed have a go at it bang get it on bonk ff,uff | have sexual intercourse with, This student sleeps with everyone in her dorm, Adam knew Eve, Were you ever intimate with this man? |
hunch hump hunch forward hunch over | round one's back by bending forward and drawing the shoulders forward |