place that runner must touch before scoring; "he scrambled to get back to the bag"
(electronics) the part of a transistor that separates the emitter from the collector
installation from which a military force initiates operations; "the attack wiped out our forward bases"
a flat bottom on which something is intended to sit; "a tub should sit on its own base"
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"
the place where you are stationed and from which missions start and end
(anatomy) the part of an organ nearest its point of attachment; "the base of the skull"
the bottom or lowest part; "the base of the mountain"
(numeration system) the positive integer that is equivalent to one in the next higher counting place; "10 is the radix of the decimal system"
the bottom side of a geometric figure from which the altitude can be constructed; "the base of the triangle"
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"
debased; not genuine; "an attempt to eliminate the base coinage"
illegitimate
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"
of low birth or station (`base' is archaic in this sense); "baseborn wretches with dirty faces"; "of humble (or lowly) birth"
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"
(used of metals) consisting of or alloyed with inferior metal; "base coins of aluminum"; "a base metal"
(genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring
a rack attached to a vehicle; for carrying luggage or skis or the like
a self-propelled wheeled vehicle designed specifically to carry something; "refrigerated carriers have revolutionized the grocery business"
a person or firm in the business of transporting people or goods or messages
(medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others
a boy who delivers newspapers
someone whose employment involves carrying something; "the bonds were transmitted by carrier"
an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
enlarge, develop, or increase by degrees or in stages; "build up your savings"
change the use of and make available or usable; "develop land"; "The country developed its natural resources"; "The remote areas of the country were gradually built up"
form or accumulate steadily; "Resistance to the manager's plan built up quickly"; "Pressure is building up at the Indian-Pakistani border"
bolster or strengthen; "We worked up courage"; "build up confidence"; "ramp up security in the airports"