plural of summer smog

photochemical smog

(architecture, obsolete) a stone on which a supporting beam rests, forming part of a wall. / (architecture, obsolete) the large triangular stone at the head of a gable.

(architecture, obsolete) a horizontal load-bearing beam in a building or other structure; (in later use) spec. the main beam supporting the girders or joists of a floor (or occasionally the rafters of a roof).

(obsolete) the upper summer of a lapidary's wheel

movable tower used in sieges

(psychology) Summer seasonal affective disorder.

plural of summer tire

A grape of species Vitis aestivalis, native to the Eastern U.S. / A grape of species Vitis labrusca, native to the Eastern U.S.; a fox grape.

(informal, psychology) Seasonal affective disorder during the summer season.