dɪˈpreʃən n. 1 a Psychol. a
state of
extreme dejection or morbidly
excessive melancholy; a mood of hopelessness
and feelings of inadequacy,
often with physical symptoms. b a
reduction in
vitality,
vigour, or spirits. 2 a a long
period of
financial and
industrial decline; a
slump. b (the Depression)
the depression of 1929-34. 3 Meteorol. a lowering of atmospheric
pressure,
esp. the
centre of a
region of
minimum pressure or the
system of winds
round it. 4 a
sunken place or
hollow on a
surface. 5 a a lowering or sinking (often foll. by of : depression of freezing-point). b
pressing down. 6 Astron. & Geog. the
angular distance of an
object below the
horizon or a
horizontal plane. [ME f. OF or L depressio (as
DE-, premere presspress)]