polypary

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

• noun The supporting framework of a colony of polyps of a cnidarian, especially a coral.

from The Century Dictionary.

• The stock of the Anthozoa and related polyps; a polyp-stock, polypidom, or polyparia; the horny or chitinous outer covering or envelop with which many of the Hydrozoa are furnished.

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

• noun (Zoöl.) Same as polypidom.

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

• noun polyparium