base (n.)

  1. installation from which a military force initiates operations; the attack wiped out our forward bases

    [ Syn: base of operations ]

  2. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; bases include oxides and hydroxides of metals and ammonia

    [ Syn: alkali ]

  3. the bottom side of a geometric figure from which the altitude can be constructed; the base of the triangle'

  4. the most important or necessary part of something; the basis of this drink is orange juice

    [ Syn: basis ]

  5. (numeration system) the positive integer that is equivalent to one in the next higher counting place; 10 is the radix of the decimal system

    [ Syn: radix ]

  6. the place where you are stationed and from which missions start and end

    [ Syn: home ]

  7. a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 countries

    [ Syn: al-qaeda , qaeda , al-qaida , al-qaida , base ]

  8. (linguistics) the form of a word after all affixes are removed; thematic vowels are part of the stem

    [ Syn: root , root word , stem , theme , radical ]

  9. the stock of basic facilities and capital equipment needed for the functioning of a country or area; the industrial base of Japan

    [ Syn: infrastructure ]

  10. the principal ingredient of a mixture; glycerinated gelatin is used as a base for many ointments; he told the painter that he wanted a yellow base with just a hint of green; everything she cooked seemed to have rice as the base'

  11. a flat bottom on which something is intended to sit; a tub should sit on its own base'

  12. lowest support of a structure; it was built on a base of solid rock; he stood at the foot of the tower

    [ Syn: foundation , fundament , foot , groundwork , substructure , understructure ]

  13. (electronics) the part of a transistor that separates the emitter from the collector

  14. a place that the runner must touch before scoring; he scrambled to get back to the bag

    [ Syn: bag ]

  15. the bottom or lowest part; the base of the mountain'

  16. (anatomy) the part of an organ nearest its point of attachment; the base of the skull'

  17. a lower limit; the government established a wage floor

    [ Syn: floor ]

  18. the fundamental assumptions from which something is begun or developed or calculated or explained; the whole argument rested on a basis of conjecture

    [ Syn: basis , foundation , fundament , groundwork , cornerstone ]

  19. a support or foundation; the base of the lamp

    [ Syn: pedestal , stand ]

  20. a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

    [ Syn: nucleotide ]

    base (adj.)

  1. serving as or forming a base; the painter applied a base coat followed by two finishing coats

    [ Syn: basal ]

  2. of low birth or station (`base is archaic in this sense); baseborn wretches with dirty faces; of humble (or lowly) birth

    [ Syn: baseborn , humble , lowly ]

  3. (used of metals) consisting of or alloyed with inferior metal; base coins of aluminum; a base metal'

  4. not adhering to ethical or moral principles; base and unpatriotic motives; a base, degrading way of life; cheating is dishonorable; they considered colonialism immoral; unethical practices in handling public funds

    [ Syn: immoral ]

  5. having or showing an ignoble lack of honor or morality; that liberal obedience without which your army would be a base rabble- Edmund Burke; taking a mean advantage; chokd with ambition of the meaner sort- Shakespeare; something essentially vulgar and meanspirited in politics

    [ Syn: mean , meanspirited ]

  6. illegitimate

    [ Syn: baseborn ]

  7. debased; not genuine; an attempt to eliminate the base coinage'

    base (v.)

  1. use as a basis for; found on; base a claim on some observation

    [ Syn: establish , ground , found ]

  2. situate as a center of operations; we will base this project in the new lab'

  3. use (purified cocaine) by burning it and inhaling the fumes

    [ Syn: free-base ]

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.