Wordnet 3.0
NOUN (1)
1.
the theological doctrine of the Society of Friends characterized by opposition to war and rejection of ritual and a formal creed and an ordained ministry;
The Collaborative International Dictionary of English v.0.48:
Quakerism \Quak"er*ism\, n.
The peculiar character, manners, tenets, etc., of the
Quakers.
[1913 Webster]
WordNet (r) 3.0 (2006):
Quakerism
n 1: the theological doctrine of the Society of Friends
characterized by opposition to war and rejection of ritual
and a formal creed and an ordained ministry