12-letter words containing e, c, m, o
- appendectomy — the surgical removal of the vermiform appendix
- approachment — (archaic) approach.
- archaeometry — the use of science and modern technology in archaeology to examine and interpret archaeological remains
- archesporium — archespore.
- archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
- armed forces — The armed forces or the armed services of a country are its military forces, usually the army, navy, marines, and air force.
- armoured car — a fast lightly armed and armoured vehicle, mainly used for reconnaissance
- army officer — a person in the army who holds a position of authority, responsibility and duty, especially one who holds a commission
- ascomycetous — belonging or pertaining to the Ascomycota.
- astigmoscope — astigmatoscope.
- astrochemist — (chemistry, astronomy) A chemist or astronomer whose speciality is astrochemistry.
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atomic power — nuclear power.
- autocomplete — a feature of a word processor, email program, web browser, etc., that automatically predicts the remaining characters in a word or phrase based on what has been typed or input before: If you supply the information, your browser will be able to use autocomplete to fill out online forms.
- axiom schema — (logic) A formula in the language of an axiomatic system, containing one or more. These metasyntactic variables (or "schematic variables") that stand for terms or subformulae. An example is the Axiom of Comprehension.
- b chromosome — a type of densely staining chromosome of uncertain biological function, found in many plant and animal species.
- b lymphocyte — B cell.
- b-lymphocyte — a type of lymphocyte, originating in bone marrow, that produces antibodies
- backwoodsmen — Plural form of backwoodsman.
- balsamaceous — any of various fragrant exudations from certain trees, especially trees of the genus Commiphora, as balm-of-Gilead. Compare balm (def 1).
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.
- beach-comber — a person who lives by gathering salable articles of jetsam, refuse, etc., from beaches.
- beachcombers — Plural form of beachcomber.
- beachcombing — The action of a beachcomber.
- beam compass — an instrument for drawing large circles or arcs, consisting of a horizontal beam along which two vertical legs slide
- becomingness — The state or quality of becoming.
- besom pocket — an interior pocket with edging or stitching around the opening.
- bimorph cell — a piezoelectric transducer consisting of two crystals cemented together, used in microphones, headphones, loudspeakers, etc. to convert vibrations into a voltage output or to convert a signal voltage into vibrations that can produce audible sounds
- biochemistry — Biochemistry is the study of the chemical processes that happen in living things.
- biomagnetics — the study of magnetic fields as a form of therapy
- biomechanics — the study of the mechanics of the movement of living organisms
- biometrician — a person who is knowledgeable about biometry
- biomolecular — relating to a biomolecule
- black comedy — a comedy dealing with an unpleasant situation in a pessimistic or macabre manner
- blastomycete — any of a genus (Blastomyces) of yeastlike imperfect fungi that cause diseases in people and animals
- block system — the system whereby a railway is divided up into separate sections of track where only one train can travel at a time
- bombacaceous — of, relating to, or belonging to the Bombacaceae, a family of tropical trees, including the kapok tree and baobab, that have very thick stems, often with water-storing tissue
- bombe glacée — a dessert of ice cream lined or filled with custard, cake crumbs, etc
- bonus scheme — a scheme in a company or other organization according to which employees receive a bonus if they meet specified targets
- booch method — (programming) A widely used object-oriented analysis and object-oriented design method.
- book matches — safety matches made of paper and fastened into a small cardboard folder
- bromoacetone — a colorless and highly toxic liquid, CH 2 BrCOCH 3 , used as a lachrymatory compound in tear gas and chemical warfare gas.
- cabbage moth — a common brownish noctuid moth, Mamestra brassicae, the larva of which is destructive of cabbages and other plants
- cache memory — a small area of memory in a computer that can be accessed very quickly
- cacodaemonic — Daemonic.
- call time on — If you call time on something, you end it.
- calorimeters — Plural form of calorimeter.
- calorimetric — the measurement of heat.
- cam follower — the slider or roller in contact with the cam that transmits the movement dictated by the cam profile
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia