Avena barbata
— Noun
– English
～ oat of southern Europe and southwestern Asia
American barberry
— Noun
– English
～ deciduous shrub of eastern North America whose leaves turn scarlet in autumn and having racemes of yellow flowers followed by ellipsoid glossy red berries
Antigua and Barbuda
— Noun
– English
～ a country in the northern Leeward Islands
argle-bargle
— Noun
– English
～ a verbal dispute; a wrangling argument
argy-bargy
— Noun
– English
～ a verbal dispute; a wrangling argument
angostura bark
— Noun
– English
～ the bitter bark of a South American tree; used in medicines and liqueurs and bitters
Alben Barkley
— Noun
– English
～ United States politician and lawyer; vice president of the United States (1877-1956)
acorn barnacle
— Noun
– English
～ barnacle that attaches to rocks especially in intertidal zones
aneroid barometer
— Noun
– English
～ a barometer that measures pressure without using fluids
Amelanchier bartramiana
— Noun
– English
～ open-growing shrub of eastern North America having pure white flowers and small waxy almost black fruits
air base
— Noun
– English
～ a base for military aircraft
army base
— Noun
– English
～ a large base of operations for an army
acid-base balance
— Noun
– English
～ (physiology) the normal equilibrium between acids and alkalis in the body; "with a normal acid-base balance in the body the blood is slightly alkaline"
arteria basilaris
— Noun
– English
～ an unpaired artery; supplies the pons and cerebellum and the back part of the cerebrum and the inner ear
accrual basis
— Noun
– English
～ a method of accounting in which each item is entered as it is earned or incurred regardless of when actual payments are received or made
American basswood
— Noun
– English
～ large American shade tree with large dark green leaves and rounded crown
at-bat
— Noun
– English
～ (baseball) a turn trying to get a hit; "he was at bat when it happened"; "he got four hits in four at-bats"
assault and battery
— Noun
– English
～ an assault in which the assailant makes physical contact
automobile battery
— Noun
– English
～ a lead-acid storage battery in a motor vehicle; usually a 12-volt battery of six cells; the heart of the car's electrical system
A battery
— Noun
– English
～ the battery used to heat the filaments of a vacuum tube