ˈɡri:nhaus n. a
light structure with the sides
and roof mainly of
glass,
for rearing
delicate plants or hastening the
growth of plants. øgreenhouse
effect the trapping of the sun's warmth in the lower
atmosphere of the
earth caused by an
increase in
carbon dioxide,
which is
more transparent to
solar radiation than to the reflected radiation
from the earth. greenhouse
gas any of
various gases,
esp. carbon dioxide,
that contribute to the greenhouse effect.