95dc162e_Glossary_of_Dance_Terms__m_Dance_Dictionary_from_Webref
Spiral [Abbreviations] sprl
A solo action. Turn in place on ball of supporting foot in direction opposite to supporting foot (on left foot, turn right). A full spiral is 7/8 turn; ends with the legs quite tightly twisted, ankles together. Usually, you will take a "step/spiral." Don't make the mistake of anticipating the turn. Step, get your body stably balanced over that supporting foot, and only then sharply turn on that spot.
Glossary of Dance Terms
Description Glossary of Terms and Abbreviations from BallroomDancers.com Dance Dictionary from Webref