(UK, slang, obsolete) St Mary Hall, Oxford, England, a medieval academic hall of the University of Oxford, incorporated into Oriel College in 1902.

(entomology) A species of libellulid dragonfly, Orthetrum caledonicum, of Australia, the Lesser Sundas, New Guinea, New Caledonia, the males of which are predominantly light blue in colour.

plural of slender skimmer

plural of blue skimmer

(entomology) green marsh hawk

The quality or degree of being skimmable.

plural of fiery skimmer

A libellulid dragonfly, Orthetrum villosovittatum, of Australasia.