12-letter words containing um
- birth trauma — an emotional shock caused by being born.
- blind summit — a point on a road where a vehicle approaching the top of a hill or incline cannot see vehicles approaching up the other side of the hill
- blood volume — the total quantity of blood in the body
- bonus number — (in the National Lottery) a number announced after the normal six numbers which influences the amount of prize money paid
- booster pump — A booster pump is a pump which is used where pressure is low and needs to be increased.
- brain tumour — a tumour that is situated in the brain
- breastsummer — a girder extending across a large opening in a building to support the wall above, used primarily over shop-fronts
- broad jumper — a participant in the long jump.
- bubblegummer — a young teenager; adolescent.
- bumble-puppy — a game in which a ball, attached by string to a post, is hit so that the string winds round the post
- bumbleheaded — clumsy, plodding, or foolish: He stumbled through the talk in his bumbleheaded way.
- bumper guard — either of two vertical crosspieces attached to a bumper of a motor vehicle to prevent it from locking bumpers with another vehicle.
- bumping race — (esp at Oxford and Cambridge) a race in which rowing eights start an equal distance one behind the other and each tries to bump the boat in front
- bur cucumber — a climbing vine, Sicyos angulatus, of the gourd family, of eastern and midwestern North America, having leaves with pointed lobes, small white or greenish flowers, and clusters of prickly fruits.
- cadmium cell — a photocell with a cadmium electrode that is especially sensitive to ultraviolet radiation
- calceamentum — (in ancient Rome) a sandal, boot, shoe, or other type of footwear
- calumet city — a city in NE Illinois, near Chicago.
- calumniating — Present participle of calumniate.
- calumniation — to make false and malicious statements about; slander.
- calumniators — Plural form of calumniator.
- calumniatory — of, involving, or using calumny; slanderous; defamatory.
- calumniously — in a calumnious manner
- catechumenal — Ecclesiastical. a person under instruction in the rudiments of Christianity, as in the early church; a neophyte.
- centumvirate — the office of the centumviri
- cerium metal — any of a subgroup of rare-earth metals, of which the terbium and yttrium metals comprise the other two subgroups.
- chlorophytum — any plant of the genus Chlorophytum, esp C. elatum variegatum, grown as a pot plant for its long narrow leaves with a light central stripe, and characterized by the production of offsets at the end of long scapes: family Liliaceae
- chump change — Slang. a small or insignificant amount of money.
- circumbinary — (astronomy) Of, pertaining to, or having an orbit around a binary star.
- circumboreal — of or having to do with plants and animals inhabiting boreal regions of North America and Eurasia
- circumcenter — the center of a circumscribed circle; that point where any two perpendicular bisectors of the sides of a polygon inscribed in the circle intersect.
- circumcentre — the centre of a circumscribed circle
- circumcircle — a circle that transects the vertices of a polygon
- circumcising — Present participle of circumcise.
- circumcision — surgical removal of the foreskin of males
- circumflexed — (linguistics, of a written word) exhibiting circumflex accent.
- circumflexes — Plural form of circumflex.
- circumfluent — flowing around; surrounding; encompassing
- circumfluous — flowing all around
- circumfusile — able to be diffused or poured around
- circumfusing — Present participle of circumfuse.
- circumfusion — to pour around; diffuse.
- circumgyrate — to cause (something) to move in a circular motion
- circumjacent — surrounding; lying around
- circumlocute — to speak in a circuitous way
- circumnutate — to rotate slightly on a central axis
- circumocular — surrounding the eye.
- circumradius — the radius of the circle circumscribed around a triangle.
- circumrotary — Alternative form of circumrotatory.
- circumrotate — to turn like a wheel; rotate
- circumscribe — If someone's power or freedom is circumscribed, it is limited or restricted.