n.
Pronunciation: pr ē - ' se-sh ə n
Function: noun
Etymology: New Latin praecession-, praecessio, from Medieval Latin, act of preceding, from Latin praecedere to precede
Date: 1879
: a comparatively slow gyration of the rotation axis of a spinning body about another line intersecting it so as to describe a cone
– pre · ces · sion · al \ - ' sesh-n ə l, - ' se-sh ə -n ə l \ adjective