1: serving as or forming a base; "the painter applied a base coat followed by two finishing coats" [syn: basal]
2: (used of metals) consisting of or alloyed with inferior metal; "base coins of aluminum"; "a base metal"
3: 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]
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: dishonorable, dishonourable, immoral, unethical]
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"; "chok'd 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"
1: 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]
2: installation from which a military force initiates operations; "the attack wiped out our forward bases" [syn: base of operations]
3: 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]
4: place that runner must touch before scoring; "he scrambled to get back to the bag" [syn: bag]
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 bottom or lowest part; "the base of the mountain"
7: (anatomy) the part of an organ nearest its point of attachment; "the base of the skull"
8: a lower limit; "the government established a wage floor" [syn: floor]
9: 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]
10: a support or foundation; "the base of the lamp" [syn: pedestal, stand]
11: the bottom side of a geometric figure from which the altitude can be constructed; "the base of the triangle"
12: the most important or necessary part of something; "the basis of this drink is orange juice" [syn: basis]
13: the place where you are stationed and from which missions start and end [syn: home]
14: an intensely anti-western terrorist network that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist group; has cells in more than 50 countries [syn: al-Qaeda, Qaeda, al-Qa'ida, al-Qaida]
15: (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]
16: the stock of basic facilities and capital equipment needed for the functioning of a country or area; "the industrial base of Japan" [syn: infrastructure]
17: 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"
18: a flat bottom on which something is intended to sit; "a tub should sit on its own base"
19: (electronics) the part of a transistor that separates the emitter from the collector
1: use as a basis for; found on; "base a claim on some observation" [syn: establish, ground, found]
2: use (purified cocaine) by burning it and inhaling the fumes [syn: free-base]
3: assign to a station [syn: station, post, send, place] [also: bases (pl)]
Adjacent words: basal metabolic rate | basal metabolism | basal placentation | basal vein | basalt | basaltic | bascule | base | base hit | base of operations | base on balls | base pair | base rate | base runner | baseball | baseball bat