hyp·som·e·ter 
(hĭp-sŏmĭ-tər)
(hĭp-sŏmĭ-tər)n.
An instrument using the atmospheric pressure as measured by the change in the boiling point of water to determine land elevations.
- 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