What's the difference between blowball and cathead?

Blowball

Definition:

(n.) The downy seed head of a dandelion, which children delight to blow away.

Example Sentences:

Cathead

Definition:

(n.) A projecting piece of timber or iron near the bow of vessel, to which the anchor is hoisted and secured.

Example Sentences:

Words possibly related to "blowball"

Words possibly related to "cathead"