9-letter words containing um
- bdelliums — Plural form of bdellium.
- beach bum — If you refer to someone as a beach bum, you mean that they spend a lot of time enjoying themselves on the beach or in the sea.
- beam pump — A beam pump is an artificial-lift pumping system which uses a type of reciprocating pump to extract oil from an inland well.
- beaumaris — a resort in N Wales, on the island of Anglesey: 13th-century castle. Pop: 1513 (2001)
- beer pump — a pump for drawing beer directly from a keg or cask.
- berkelium — a metallic transuranic element produced by bombardment of americium. Symbol: Bk; atomic no: 97; half-life of most stable isotope, 247Bk: 1400 years; valency: 3 or 4; relative density: 14 (est)
- beryllium — a corrosion-resistant toxic silvery-white metallic element that occurs chiefly in beryl and is used mainly in X-ray windows and in the manufacture of alloys. Symbol: Be; atomic no: 4; atomic wt: 9.012; valency: 2; relative density: 1.848; melting pt: 1289°C; boiling pt: 2472°C
- betumbled — thrown into disorder
- bisellium — an ancient Roman seat of honor for two persons.
- black gum — a tall, deciduous tupelo (Nyssa sylvatica) with sour purple fruits and leaves that turn scarlet in the fall, found in moist forests of the E U.S.
- botulinum — an anaerobic botulin-secreting bacterium, Clostridium botulinum
- bretylium — a substance, C 18 H 24 BrNO 3 S, used to treat acute ventricular arrhythmias and suppress ventricular fibrillation.
- bromatium — any of the swollen hyphal tips of certain fungi, on which ants can feed.
- bronchium — a medium-sized bronchial tube
- brummagem — something that is cheap and flashy, esp imitation jewellery
- bubblegum — a type of chewing gum that can be blown into large bubbles through the lips.
- bucranium — (in classical architecture) an ornament, especially on a frieze, having the form of the skull of an ox.
- bujumbura — the capital of Burundi, a port at the NE end of Lake Tanganyika. Pop: 419 000 (2005 est)
- bullarium — a collection of papal bulls.
- bum steer — false or misleading information or advice
- bumblebee — A bumblebee is a large hairy bee.
- bumbledom — self-importance in a minor office
- bumfuzzle — to confuse
- bump ball — a ball that bounces into the air after being hit directly into the ground by the batsman
- bump into — If you bump into someone you know, you meet them unexpectedly.
- bumpkinly — like a bumpkin
- bumpology — phrenology
- bumptious — If you say that someone is bumptious, you are criticizing them because they are very pleased with themselves and their opinions.
- byzantium — an ancient Greek city on the Bosporus: founded about 660 bc; rebuilt by Constantine I in 330 ad and called Constantinople; present-day Istanbul
- cacuminal — relating to or denoting a consonant articulated with the tip of the tongue turned back towards the hard palate
- caladiums — Plural form of caladium.
- calcaneum — calcaneus.
- caldarium — (in ancient Rome) a room for taking hot baths
- calumnies — Plural form of calumny.
- calvarium — the upper, domed part of the skull
- capernaum — a ruined town in N Israel, on the NW shore of the Sea of Galilee: closely associated with Jesus Christ during his ministry
- capitulum — a racemose inflorescence in the form of a disc of sessile flowers, the youngest at the centre. It occurs in the daisy and related plants
- capsicums — Plural form of capsicum.
- carbenium — (organic chemistry, informal) Any carbocation.
- carbonium — a transient, positively charged organic ion, as H3C+, R3+, that has one less electron than the corresponding free radical
- carpellum — (botany) A carpel.
- castellum — a small fort, normally used as a watch tower
- castoreum — the oil secreted from the beaver which is used as bait by trappers
- cavaedium — atrium (def 1a).
- centumvir — one of a body of judges responsible for presiding over civil court cases
- centurium — A rejected name for fermium.
- cerastium — any of a genus of plants belonging to the family Caryophyllaceae
- chalumeau — an early reed instrument, the precursor of the clarinet
- checksums — Plural form of checksum.
- circumfer — (obsolete, transitive) To bear or carry around.