fountainhead | meaning of fountainhead in Longman Dictionary of Contemporary English | LDOCE

fountainhead

From Longman Dictionary of Contemporary Englishfountainheadfoun‧tain‧head /ˈfaʊntənhed $ ˈfaʊntn-/ noun [singular]    COME FROM/ORIGINATEthe origin of something SYN sourceExamples from the CorpusfountainheadKeynes, as we shall see presently, was on his way to being the new fountainhead of conventional wisdom.