Pithy

Pith"y (?), a. [Compar. Pithier (?); superl. Pithiest.] 1. Consisting wholly, or in part, of pith; abounding in pith; as, a pithy stem; a pithy fruit.

2. Having nervous energy; forceful; cogent.

This pithy speech prevailed, and all agreed.
Dryden.

In all these Goodman Fact was very short, but pithy.
Addison.

Pithy gall (Zoöl.), a large, rough, furrowed, oblong gall, formed on blackberry canes by a small gallfly (Diastrophus nebulosus).