n.
Pronunciation: ' o ̇ -t ō - ˌ kl ā v
Function: noun
Etymology: French, from aut- + Latin clavis key ― more at CLAVICLE
Date: 1876
: an apparatus in which special conditions (as high or low pressure or temperature) can be established for a variety of applications especially : an apparatus (as for sterilizing) using superheated steam under high pressure