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Glossaries and Dictionaries of Astronomy and Space Terms

Find the definitions to the words you are looking for in the glossaries and dictionaries.
  1. Astronomy Dictionary (475)
  2. Space Dictionary (22)

Space Acronyms - B Topics
Did you ever wonder what those strange conglomerations of letters you read in an article about NASA and space exploration meant? Here's your chance to find out what those NASA acronyms stand for. About Space and Astronomy presents the Guide to NASA Acronyms. This page lists acronyms starting with B. For others, click on the appropriate letter below.

Space Acronyms for topics that begin with B.

Space Acronyms - A Topics
Did you ever wonder what those strange conglomerations of letters you read in an article about NASA and space exploration meant? Here's your chance to find out what those NASA acronyms stand for. About Space and Astronomy presents the Guide to NASA Acronyms. This page lists acronyms starting with A. For others, click on the appropriate letter below.

Space Acronyms for topics that begin with A.

Astronomy and Space Online Dictionary and Glossary
Find the definitions for space and astronomy related words in this online dictionary - glossary. Definitions for the terms in this online dictionary come from a number of sources. Feel free to reference this Astronomy/Space online dictionary in written documents.

Space Definitions - Number Topics
Space definitions for topics that begin with Numbers.

Space Definitions - Z Topics
Space definitions for topics that begin with Z.

Space Definitions - Y Topics
Space definitions for topics that begin with Y.

Space Definitions - X Topics
Space definitions for topics that begin with X.

Space Definitions - W Topics
Space definitions for topics that begin with W.

Space Definitions - V Topics
Space definitions for topics that begin with V.

Space Definitions - U Topics
Space definitions for topics that begin with U.

Space Definitions - T Topics
Space definitions for topics that begin with T.

Space Definitions - S Topics
Space definitions for topics that begin with S.

Space Definitions - R Topics
Space definitions for topics that begin with R.

Space Definitions - Q Topics
Space definitions for topics that begin with Q.

Space Definitions - P Topics
Space definitions for topics that begin with P.

Space Definitions - O Topics
Space definitions for topics that begin with O.

Space Definitions - N Topics
Space definitions for topics that begin with N.

Space Definitions - M Topics
Space definitions for topics that begin with M.

Space Definitions - L Topics
Space definitions for topics that begin with L.

Space Definitions - K Topics
Space definitions for topics that begin with K.

Space Definitions - J Topics
Space definitions for topics that begin with J.

Space Definitions - I Topics
Space definitions for topics that begin with H.

Space Definitions - H Topics
Space definitions for topics that begin with H.

Space Definitions - G Topics
Space definitions for topics that begin with G.

Space Definitions - F Topics
Space definitions for topics that begin with F.

Space Definitions - E Topics
Space definitions for topics that begin with E.

Space Definitions - D Topics
Definitions of astronomy and space terms beginning with the letter D.

Space Definitions - C Topics
Space definitions for topics that begin with C.

Space Definitions - B Topics
Space definitions for topics that begin with B.

Space Definitions - A Topics
Space definitions for topics that begin with A.

Definitions - Space and Astronomy Glossary
Find the definitions to many space and astronomy words here.

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