Abies lasiocarpa
— Noun
– English
～ medium-tall timber tree of the Rocky Mountains having a narrowly conic to columnar crown
at last
— Adverb
– English
～ as the end result of a succession or process; "ultimately he had to give in"; "at long last the winter was over"
Alectura lathami
— Noun
– English
～ black megapode of wooded regions of Australia and New Guinea
Abronia latifolia
— Noun
– English
～ plant having hemispherical heads of yellow trumpet-shaped flowers; found in coastal dunes from California to British Columbia
Alexandrian laurel
— Noun
– English
～ East Indian tree having racemes of fragrant white flowers; coastal areas southern India to Malaysia
American laurel
— Noun
– English
～ a North American evergreen shrub having glossy leaves and white or rose-colored flowers
Antoine Laurent de Jussieu
— Noun
– English
～ French botanist who categorized plants into families and developed a system of plant classification (1748-1836)
Antoine Laurent Lavoisier
— Noun
– English
～ French chemist known as the father of modern chemistry; discovered oxygen and disproved the theory of phlogiston (1743-1794)
Antoine Lavoisier
— Noun
– English
～ French chemist known as the father of modern chemistry; discovered oxygen and disproved the theory of phlogiston (1743-1794)
antitrust law
— Noun
– English
～ law intended to promote free competition in the market place by outlawing monopolies
anti-drug law
— Noun
– English
～ a law forbidding the sale or use of narcotic drugs
Avogadro's law
— Noun
– English
～ the principle that equal volumes of all gases (given the same temperature and pressure) contain equal numbers of molecules
action at law
— Noun
– English
～ a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong
administrative law
— Noun
– English
～ the body of rules and regulations and orders and decisions created by administrative agencies of government
admiralty law
— Noun
– English
～ the branch of international law that deals with territorial and international waters or with shipping or with ocean fishery etc.
Appleton layer
— Noun
– English
～ the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission
antimonial lead
— Noun
– English
～ a lead alloy that contains about 5% antimony
amplexicaul leaf
— Noun
– English
～ a leaf with its base clasping the stem
acuminate leaf
— Noun
– English
～ a leaf narrowing to a slender point
acerate leaf
— Noun
– English
～ the leaf of a conifer