a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan
heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings
scenery consisting of a wooden frame covered with painted canvas; part of a stage setting
a deflated pneumatic tire
a shallow box in which seedlings are started
a musical notation indicating one half step lower than the note named
a level tract of land; "the salt flats of Utah"
commercially inactive; "flat sales for the month"; "prices remained flat"; "a flat market"
not reflecting light; not glossy; "flat wall paint"; "a photograph with a matte finish"
(of a tire) completely or partially deflated
having a relatively broad surface in relation to depth or thickness; "flat computer monitors"
having a surface without slope, tilt in which no part is higher or lower than another; "a flat desk"; "acres of level farmland"; "a plane surface"; "skirts sewn with fine flat seams"
lacking contrast or shading between tones
horizontally level; "a flat roof"
stretched out and lying at full length along the ground; "found himself lying flat on the floor"
sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting"
lowered in pitch by one chromatic semitone; "B flat"
(of taxes) not increasing as the amount taxed increases
having lost effervescence; "flat beer"; "a flat cola"