Marais des Cygnes 
(mĕr də zēn′)
(mĕr də zēn′) A river rising in east-central Kansas and flowing about 240 km (150 mi) generally southeast to the Osage River in western Missouri.
- autistic savant
- auto
- auto-
- autoantibody
- autoantigen
- autobahn
- autobiographer
- autobiographic
- autobiographical
- autobiographically
- autobiography
- autobus
- autocatalysis
- autocatalytic
- autocatalytically
- autocatalytic plating
- autocephalous
- autocephaly
- autochthon
- autochthonal
- autochthonic
- autochthonism
- autochthonous
- autochthonously
- autochthony