12-letter words containing l, o, s
- biosociology — the study of the evolution of social forms and the development of social behavior in terms analogous to or correlated with biological studies.
- biting louse — any wingless insect of the order Mallophaga, such as the chicken louse: external parasites of birds and mammals with biting mouthparts
- bitter aloes — a bitter purgative drug made from the leaves of several species of aloe
- black cohosh — a plant of the ranunculaceous family, Cimicifuga racemosa, which is used as a natural alternative to hormone replacement therapy
- black cosmos — a garden plant, Cosmos diversifolius, of Mexico, having small, dahlialike tubers and solitary flower heads with red disk flowers and velvety, dark-red or purplish ray flowers.
- black forest — wooded mountain region in SW Germany
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- black locust — Also called false acacia, yellow locust. a North American tree, Robinia pseudoacacia, of the legume family, having pinnate leaves and clusters of fragrant white flowers.
- black sapote — a tropical American tree, Diospyros digyna, related to the persimmon, having sweet, edible, green fruit that turns black when ripe.
- black scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
- blanket toss — a game in which a person is repeatedly tossed into the air and caught on an open blanket by a group of people who hold the blanket at its edges and stretch and relax it for each toss and catch.
- blastocoelic — of or relating to the blastocoel
- blastomycete — any of a genus (Blastomyces) of yeastlike imperfect fungi that cause diseases in people and animals
- blastosphere — blastula
- blastulation — the process of blastula formation
- blind-emboss — blind-stamp.
- block island — an island off the coast of and a part of Rhode Island, at the E entrance to Long Island Sound.
- block signal — a fixed railroad signal governing the movements of trains entering and using a given section of track.
- block system — the system whereby a railway is divided up into separate sections of track where only one train can travel at a time
- blockbusting — A blockbusting film or book is one that is very successful, usually because it is very exciting.
- blocked shoe — a dancing shoe with a stiffened toe that enables a ballet dancer to dance on the tips of the toes
- blood plasma — the pale yellow fluid portion of the blood; blood from which red and white blood cells and platelets have been removed
- blood sample — an amount of a person's blood taken from their body for use in medical tests
- blood sister — a sister by birth
- blood spavin — a disease of the hock joint of horses in which enlargement occurs because of collected fluids (bog spavin) bony growth (bone spavin) or distention of the veins (blood spavin)
- blood supply — the flow of blood to different parts of the body
- blood vessel — Blood vessels are the narrow tubes through which your blood flows.
- bloodstained — Someone or something that is bloodstained is covered with blood.
- bloodsucking — any animal that sucks blood, especially a leech.
- bloodthirsty — Bloodthirsty people are eager to use violence or display a strong interest in violent things. You can also use bloodthirsty to refer to very violent situations.
- bloody shirt — something, as a political issue or historical event, that can be used to stir up outrage, partisan support, etc.
- blossom into — the flower of a plant, especially of one producing an edible fruit.
- blue stilton — a rich cheese made from whole milk, blue-veined and very strong in flavour
- blue succory — a composite garden plant, Catananche caerulea, of southern Europe, having very hairy leaves and blue flower heads, used by the ancients as a love potion.
- bluestocking — A bluestocking is an intellectual woman.
- board school — (formerly) a school managed by a board elected by local ratepayers
- boardsailing — windsurfing
- body bolster — the lower transverse member of a car body to which the body center plate is attached.
- body english — a follow-through motion of the body, as after bowling a ball, in a semi-involuntary or joking effort to control the ball's movement
- bog asphodel — either of two liliaceous plants, Narthecium ossifragum of Europe or N. americanum of North America, that grow in boggy places and have small yellow flowers and grasslike leaves
- boiled shirt — a dress shirt with a stiff front
- boiled sweet — Boiled sweets are hard sweets that are made from boiled sugar.
- boiler house — a building housing a boiler
- boisterously — rough and noisy; noisily jolly or rowdy; clamorous; unrestrained: the sound of boisterous laughter.
- bolshevikism — the doctrines, methods, or procedure of the Bolsheviks.
- bolshevistic — of, relating to, or characteristic of Bolshevists or Bolshevism.
- bomb shelter — a shelter, usually underground, in which people take refuge from bomb attacks
- bombay hills — a row of hills marking the southern boundary of greater Auckland on the North Island, New Zealand
- bonnet glass — monteith (def 2).
- bonnet-glass — a large punch bowl, usually of silver, having a notched rim for suspending punch cups.