(astronomy) a spiral-shaped nebula / (astronomy, obsolete) a spiral-shaped white nebula; these were generally determined to be spiral galaxies in the 20th century

A neo-pagan group dance emphasizing community and rebirth.

(aviation) The downward, corkscrew-motion of a disabled aircraft which is unrecoverably headed for a crash.

(aviation) The downward, corkscrew-motion of a disabled aircraft which is unrecoverably headed for a crash.

plural of spiral DRAGN

(astronomy) a spiral galaxy which contains a DRAGN

A Costa Rican tropical plant distantly related to ginger, Costus barbatus, which is grown for its showy red flowerheads.

plural of spiral ginger

A structure of currents or winds near a horizontal boundary in which the flow direction rotates as one moves away from the boundary.

plural of Ekman spiral