What is "greater ionic"

Ionic \I*on"ic\, n.

1. (Pros.)

   1. A foot consisting of four syllables: either two long and two short, -- that is, a spondee and a pyrrhic, in which case it is called the greater Ionic; or two short and two long, -- that is, a pyrrhic and a spondee, in which case it is called the smaller Ionic.

   2. A verse or meter composed or consisting of Ionic feet.

2. The Ionic dialect; as, the Homeric Ionic.

3. (Print.) Ionic type.