basebeɪs
base
English Definitions:
base, base of operations (noun)
installation from which a military force initiates operations
"the attack wiped out our forward bases"
foundation, base, fundament, foot, groundwork, substructure, understructure (noun)
lowest support of a structure
"it was built on a base of solid rock"; "he stood at the foot of the tower"
base, bag (noun)
a place that the runner must touch before scoring
"he scrambled to get back to the bag"
base (noun)
the bottom or lowest part
"the base of the mountain"
base (noun)
(anatomy) the part of an organ nearest its point of attachment
"the base of the skull"
floor, base (noun)
a lower limit
"the government established a wage floor"
basis, base, foundation, fundament, groundwork, cornerstone (noun)
the fundamental assumptions from which something is begun or developed or calculated or explained
"the whole argument rested on a basis of conjecture"
base, pedestal, stand (noun)
a support or foundation
"the base of the lamp"
nucleotide, base (noun)
a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
base, alkali (noun)
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"
base (noun)
the bottom side of a geometric figure from which the altitude can be constructed
"the base of the triangle"
basis, base (noun)
the most important or necessary part of something
"the basis of this drink is orange juice"
base, radix (noun)
(numeration system) the positive integer that is equivalent to one in the next higher counting place
"10 is the radix of the decimal system"
base, home (noun)
the place where you are stationed and from which missions start and end
al-Qaeda, Qaeda, al-Qa'ida, al-Qaida, Base (noun)
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
root, root word, base, stem, theme, radical (noun)
(linguistics) the form of a word after all affixes are removed
"thematic vowels are part of the stem"
infrastructure, base (noun)
the stock of basic facilities and capital equipment needed for the functioning of a country or area
"the industrial base of Japan"
base (noun)
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"
base (noun)
a flat bottom on which something is intended to sit
"a tub should sit on its own base"
base (adj)
(electronics) the part of a transistor that separates the emitter from the collector
basal, base (adj)
serving as or forming a base
"the painter applied a base coat followed by two finishing coats"
base, baseborn, humble, lowly (adj)
of low birth or station (`base' is archaic in this sense)
"baseborn wretches with dirty faces"; "of humble (or lowly) birth"
base (adj)
(used of metals) consisting of or alloyed with inferior metal
"base coins of aluminum"; "a base metal"
base, immoral (adj)
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"
base, mean, meanspirited (adj)
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"
base, baseborn (adj)
illegitimate
base (verb)
debased; not genuine
"an attempt to eliminate the base coinage"
establish, base, ground, found (verb)
use as a basis for; found on
"base a claim on some observation"
base (verb)
situate as a center of operations
"we will base this project in the new lab"
free-base, base (verb)
use (purified cocaine) by burning it and inhaling the fumes
Base
A base in chemistry is a substance that can accept hydrogen cations or, more generally, donate a pair of valence electrons. A soluble base is called an alkali if it contains and releases hydroxide ions quantitatively. The Brønsted-Lowry theory defines bases as proton acceptors, while the more general Lewis theory defines bases as electron pair donors, including Lewis acids other than protons. The oldest Arrhenius theory defines bases as hydroxide anions, which is strictly applicable only to alkali. In water, by altering the autoionization equilibrium, bases give solutions with a hydrogen ion activity lower than that of pure water, i.e., a pH higher than 7.0 at standard conditions. Examples of common bases are sodium hydroxide and ammonia. Metal oxides, hydroxides and especially alkoxides are basic, and counteranions of weak acids are weak bases. Bases can be thought of as the chemical opposite of acids. A reaction between an acid and base is called neutralization. Bases and acids are seen as opposites because the effect of an acid is to increase the hydronium ion concentration in water, whereas bases reduce this concentration. Bases and acids are typically found in aqueous solution forms. Aqueous solutions of bases react with aqueous solutions of acids to produce water and salts in aqueous solutions in which the salts separate into their component ions. If the aqueous solution is saturated with a given salt solute, any additional such salt precipitates out of the solution.
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"base." Kamus.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.kamus.net/english/base>.
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