1.  spouter(n = noun.person) babbler, chatterbox, chatterer, magpie, prater - an obnoxious and foolish and loquacious talker;
is a kind of speaker, talker, utterer, verbaliser, verbalizer
Derived form verb spout₂

2.  spouter(n = noun.artifact) - an oil well that is spouting;
is a kind of oil well, oiler
Derived form verb spout₁

3.  spouter(n = noun.animal) - a spouting whale;
is a kind of whale
Derived form verb spout₁

   One who, or that which, spouts. [1913 Webster]