plural of deltiologist

An aerial maneuver in which the performer spins through six full revolutions.

Abbreviation of dipropyleneglycol. / Abbreviation of diphosphoglycerate. / Abbreviation of dihydroxyphenylglycine.

A low sound associated with extended suffering, sorrow, and toil. / (obsolete) Ellipsis of groaning time. (childbirth, labour)