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
tending to or capable of propelling; "propellant fuel for submarines"; "the faster a jet plane goes the greater its propulsive efficiency"; "universities...the seats of propulsive thought"
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"
black clothing (worn as a sign of mourning); "the widow wore black"
(board games) the darker pieces
the quality or state of the achromatic color of least lightness (bearing the least resemblance to white)
a person with dark skin who comes from Africa (or whose ancestors came from Africa)
popular child actress of the 1930's (born in 1928)
British chemist who identified carbon dioxide and who formulated the concepts of specific heat and latent heat (1728-1799)
marked by anger or resentment or hostility; "black looks"; "black words"
of or belonging to a racial group having dark skin especially of sub-Saharan African origin; "a great people--a black people--...injected new meaning and dignity into the veins of civilization"- Martin Luther King Jr.
extremely dark; "a black moonless night"; "through the pitch-black woods"; "it was pitch-dark in the cellar"
being of the achromatic color of maximum darkness; having little or no hue owing to absorption of almost all incident light; "black leather jackets"; "as black as coal"; "rich black soil"
(of the face) made black especially as with suffused blood; "a face black with fury"
soiled with dirt or soot; "with feet black from playing outdoors"; "his shirt was black within an hour"
dressed in black; "a black knight"; "black friars"
(of coffee) without cream or sugar
(of events) having extremely unfortunate or dire consequences; bringing ruin; "the stock market crashed on Black Friday"; "a calamitous defeat"; "the battle was a disastrous end to a disastrous campaign"; "such doctrines, if true, would be absolutely fatal to my theory"- Charles Darwin; "it is fatal to enter any war without the will to win it"- Douglas MacArthur; "a fateful error"
stemming from evil characteristics or forces; wicked or dishonorable; "black deeds"; "a black lie"; "his black heart has concocted yet another black deed"; "Darth Vader of the dark side"; "a dark purpose"; "dark undercurrents of ethnic hostility"; "the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy
(used of conduct or character) deserving or bringing disgrace or shame; "Man...has written one of his blackest records as a destroyer on the oceanic islands"- Rachel Carson; "an ignominious retreat"; "inglorious defeat"; "an opprobrious monument to human greed"; "a shameful display of cowardice"
offering little or no hope; "the future looked black"; "prospects were bleak"; "Life in the Aran Islands has always been bleak and difficult"- J.M.Synge; "took a dim view of things"