septimole

from The Century Dictionary.

• noun In music, a group of seven notes to be played in the time of four or six of the same kind. It is indicated by the sign placed over the group. Also septole.

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

• noun (Mus.) A group of seven notes to be played in the time of four or six.

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

• noun music A group of seven notes to be played in the time of four or six.