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Dictionary Suite
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astronomy the branch of science concerned with the physical universe beyond the atmosphere of the earth.
astrophotography the photographing of astronomical objects.
astrophysics (used with a sing. verb) the branch of physics that deals with the physical and chemical properties of heavenly bodies and interstellar space.
astute keen in understanding and judgment; shrewd.
Asunción the capital of Paraguay.
asunder in or into separate parts or pieces. [2 definitions]
as usual in the usual way; as always.
as well in addition; also; too.
as well as and also; and moreover. [2 definitions]
as yet up until now; up to this point.
asylum (old-fashioned) an institution for the care of those who are unable to maintain themselves, such as orphans or the severely mentally ill. [3 definitions]
asymmetric different, esp. in arrangement of space, on either side of a center line; not symmetrical; unbalanced.
asymmetry the state or quality of having two unidentical halves; lack of balance.
asymptomatic not showing any symptoms of a disease (usu. used in reference to an individual who does, in fact, have the disease and may or may not be a carrier).
asymptote in mathematics, a straight line that approaches but never meets a curve.
asynchronous not occurring at the same time. [2 definitions]
At symbol of the chemical element astatine.
at1 on or in the location of. [5 definitions]
at2 the smaller monetary unit of Laos. (Cf. kip.)
at- to.
Atacama a desert in northern Chile that lies between the Pacific Ocean and the Andes mountains.