saccate

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Shaped like a pouch or sac.

from The Century Dictionary.

• In botany, furnished with or having the form of a bag or pouch: as, a saccate petal.
• In anatomy and zoology: Forming or formed by a sac; cystic; pouch-like; sacciform; sacculate.
• Having a sac, or saccate part; pouched; sacculated; sacciferous.
• Specifically, of or pertaining to the Saccata or the Saccatæ.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Biol.) Having the form of a sack or pouch; furnished with a sack or pouch, as a petal.
• adjective (Zoöl.) Of or pertaining to the Saccata, a suborder of ctenophores having two pouches into which the long tentacles can be retracted.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Shaped like a pouch or sac.
• adjective Having a pouch or sac.
• adjective Enclosed in a sac.
• adjective botany Of a pollen grain that has one or more sacci.