base 1

底；基础

起点

基地；本部

军事基地

底边；底线

基数

对数的底数

主要成分

〈化〉盐基；硷

（棒、垒球的）垒

base 2

卑鄙的

不纯的，伪造的

成色低的（金属）

（与on, upon连用）根据；基于

base

底部, 基础, 根据地, 基地, 本部, 基数, (运动)出发点

以...作基础, 基于...

adj.卑鄙的, 低级的

base

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"

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

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

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

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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"

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6. the bottom or lowest part; "the base of the mountain"

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

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8. a lower limit; "the government established a wage floor"

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

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10. a support or foundation; "the base of the lamp"

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

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

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

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

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

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16. 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"

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

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

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

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

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3. assign to a station

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

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

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

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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"

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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"

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6. illegitimate

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

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