pyridine - a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal

purine - a colorless crystalline nitrogen-containing organic base; the parent compound of various biologically important substances

purine - any of several bases that are derivatives of purine

chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

glyoxaline, imidazole, iminazole - an organic base C3H4N2; a histamine inhibitor

cyanuramide, melamine - a white crystalline organic base; used mainly in making melamine resins

pyrimidine - any of several basic compounds derived from pyrimidine

air base, air station - a base for military aircraft

army base - a large base of operations for an army

firebase - an artillery base to support advancing troops

military installation - any facility servicing military forces

navy base - base of operations for a naval fleet

rocket base - a military base for rocket missiles

armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"

bed - a foundation of earth or rock supporting a road or railroad track; "the track bed had washed away"

raft foundation - a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete

structure, construction - a thing constructed; a complex construction or entity; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"

support - supporting structure that holds up or provides a foundation; "the statue stood on a marble support"

baseball diamond, infield, diamond - the area of a baseball field that is enclosed by 3 bases and home plate

baseball equipment - equipment used in playing baseball

first base - the base that must be touched first by a base runner in baseball

home base, home plate, plate, home - (baseball) base consisting of a rubber slab where the batter stands; it must be touched by a base runner in order to score; "he ruled that the runner failed to touch home"

second base - the base that must be touched second by a base runner in baseball

third base, third - the base that must be touched third by a base runner in baseball; "he was cut down on a close play at third"

number representation system, number system, numeration system, system of numeration - any notation for the representation of numbers

number - a concept of quantity derived from zero and units; "every number has a unique position in the sequence"

piece, part - a portion of a natural object; "they analyzed the river into three parts"; "he needed a piece of granite"

anatomy, general anatomy - the branch of morphology that deals with the structure of animals

bottom - the lowest part of anything; "they started at the bottom of the hill"

control - the economic policy of controlling or limiting or curbing prices or wages etc.; "they wanted to repeal all the legislation that imposed economic controls"

price floor - floor below which prices are not allowed to fall; "the government used price supports to maintain the price floor"

wage floor - floor below which wages are not allowed to fall

explanation - thought that makes something comprehensible

meat and potatoes - the fundamental part; "successful negotiation is the meat and potatoes of arbitration"

supposal, supposition, assumption - a hypothesis that is taken for granted; "any society is built upon certain assumptions"

brass monkey - a metal stand that formerly held cannon balls on sailing ships

staddle - a base or platform on which hay or corn is stacked

support - any device that bears the weight of another thing; "there was no place to attach supports for a shelf"

trivet - a stand with short feet used under a hot dish on a table

trivet - a three-legged metal stand for supporting a cooking vessel in a hearth

flank - a subfigure consisting of a side of something

component part, part, portion, component - something determined in relation to something that includes it; "he wanted to feel a part of something bigger than himself"; "I read a portion of the manuscript"; "the smaller component is hard to reach"

location - a point or extent in space

foreign terrorist organization, FTO, terrorist group, terrorist organization - a political movement that uses terror as a weapon to achieve its goals

Afghanistan, Islamic State of Afghanistan - a mountainous landlocked country in central Asia; bordered by Iran to the west and Russia to the north and Pakistan to the east and south; "Soviet troops invaded Afghanistan in 1979"

Islamic Republic of Pakistan, Pakistan, West Pakistan - a Muslim republic that occupies the heartland of ancient south Asian civilization in the Indus River valley; formerly part of India; achieved independence from the United Kingdom in 1947

linguistics - the scientific study of language

descriptor, form, signifier, word form - the phonological or orthographic sound or appearance of a word that can be used to describe or identify something; "the inflected forms of a word can be represented by a stem and a list of inflections to be attached"

communication equipment, communication system - facility consisting of the physical plants and equipment for disseminating information

fire station, firehouse - a station housing fire apparatus and firemen

gas system - facility (plant and equipment) for providing natural-gas service

main - a principal pipe in a system that distributes water or gas or electricity or that collects sewage

penal facility, penal institution - an institution where persons are confined for punishment and to protect the public

grid, power grid, power system - a system of high tension cables by which electrical power is distributed throughout a region

public works - structures (such as highways or schools or bridges or docks) constructed at government expense for public use

school system - establishment including the plant and equipment for providing education from kindergarten through high school

sewage system, sewage works, sewer system - facility consisting of a system of sewers for carrying off liquid and solid sewage

transportation, transportation system, transit - a facility consisting of the means and equipment necessary for the movement of passengers or goods

water supply, water system, water - facility that provides a source of water; "the town debated the purification of the water supply"; "first you have to cut off the water"

fund, store, stock - a supply of something available for future use; "he brought back a large store of Cuban cigars"

ingredient - a component of a mixture or compound

box - a (usually rectangular) container; may have a lid; "he rummaged through a box of spare parts"

lamp - a piece of furniture holding one or more electric light bulbs

vessel - an object used as a container (especially for liquids)

bottom, underside, undersurface - the lower side of anything

electrode - a conductor used to make electrical contact with some part of a circuit

electronic transistor, junction transistor, transistor - a semiconductor device capable of amplification

electronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices

build - found or ground; "build a defense on nothing but the accused person's reputation"

do drugs, drug - use recreational drugs

garrison - station (troops) in a fort or garrison

fort - station (troops) in a fort

move, displace - cause to move, both in a concrete and in an abstract sense; "Move those boxes into the corner, please"; "I'm moving my money to another bank"; "The director moved more responsibilities onto his new assistant"

site, locate, place - assign a location to; "The company located some of their agents in Los Angeles"

basic - pertaining to or constituting a base or basis; "a basic fact"; "the basic ingredients"; "basic changes in public opinion occur because of changes in priorities"

inferior - of low or inferior quality

lowborn - of humble birth or origins; "a topsy-turvy society of lowborn rich and blue-blooded poor"

wrong - contrary to conscience or morality or law; "it is wrong for the rich to take advantage of the poor"; "cheating is wrong"; "it is wrong to lie"

ignoble - completely lacking nobility in character or quality or purpose; "something cowardly and ignoble in his attitude"; "I think it a less evil that some criminals should escape than that the government should play an ignoble part"- Oliver Wendell Holmes, Jr.

archaicism, archaism - the use of an archaic expression

illegitimate - of marriages and offspring; not recognized as lawful

counterfeit, imitative - not genuine; imitating something superior; "counterfeit emotion"; "counterfeit money"; "counterfeit works of art"; "a counterfeit prince"