12-letter words containing a, r, m, h, o
- bagworm moth — any moth of the family Psychidae
- bathochromic — denoting or relating to a shift to a longer wavelength in the absorption spectrum of a compound
- beach-comber — a person who lives by gathering salable articles of jetsam, refuse, etc., from beaches.
- beachcombers — Plural form of beachcomber.
- behaviourism — Behaviourism is the belief held by some psychologists that the only valid method of studying the psychology of people or animals is to observe how they behave.
- blabbermouth — a person who talks too much or indiscreetly
- bromomethane — methyl bromide.
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- cache memory — a small area of memory in a computer that can be accessed very quickly
- camera phone — A camera phone is a mobile phone that can also take photographs.
- camphor ball — mothball
- camphor tree — a lauraceous evergreen E Asian tree, Cinnamomum camphora, whose aromatic wood yields camphor
- camphorating — Present participle of camphorate.
- cathetometer — an instrument measuring minute height differences
- cathiodermie — a beauty treatment for the skin, which involves using electrotherapy
- cephalometer — an instrument for positioning the human head for X-ray examination in cephalometry
- cephalometry — measurement of the dimensions of the human head by radiography: used mainly in orthodontics
- ceramography — the study, analysis, and preparation of ceramic microstructures, usually for industrial use
- chain smoker — person: smokes heavily
- chain-smoker — A chain-smoker is a person who chain-smokes.
- chamber tomb — a prehistoric tomb with a chamber inside it in which the body of an important person was laid to rest
- chapter room — a room for the use of the chapter of a religious institution
- charm school — a school teaching manners and social skills
- chaulmoogras — Plural form of chaulmoogra.
- chemotherapy — Chemotherapy is the treatment of disease using chemicals. It is often used in treating cancer.
- chimneyboard — a partition or a cover to shut off a fireplace
- chloralamide — (chemistry) A compound of chloral and formic amide, used to induce sleep.
- chlorambucil — an alkylating drug derived from nitrogen mustard, administered orally in the treatment of leukaemia and other malignant diseases. Formula: C14H19Cl2NO2
- chlorenchyma — plant tissue consisting of parenchyma cells that contain chlorophyll
- choirmasters — Plural form of choirmaster.
- chorusmaster — the conductor of a choir
- chrestomathy — a collection of literary passages, used in the study of language
- chromaticism — the use of chromatic tones.
- chromaticity — the quality of a colour or light with reference to its purity and its dominant wavelength
- chromatogram — a column or strip of material containing constituents of a mixture separated by chromatography
- chromatology — chromatics.
- chromatophil — Also, chromatophilic, chromatophilous [kroh-muh-tof-uh-luh s] /ˌkroʊ məˈtɒf ə ləs/ (Show IPA). chromophil (def 1).
- chromatopsia — an irregularity in the ability to see colours properly
- chromic acid — an unstable dibasic oxidizing acid known only in solution and in the form of chromate salts. Formula: H2CrO4
- chromography — (obsolete) chromolithography.
- chromonemata — a chromosome thread that is relatively uncoiled at early prophase but assumes a spiral form at metaphase.
- chromophilia — the property of staining readily.
- chromophobia — Lb biology The quality of being resistant to staining.
- chromoplasts — Plural form of chromoplast.
- clam chowder — chowder containing clams
- cochairwoman — a woman who cochairs an organization
- cometography — the scientific description and recording of comets
- cornishwoman — a woman who is a native or inhabitant of Cornwall
- cosmographer — (astrophysics) A scientist specializing in understanding and describing the nature of the universe.
- cosmographic — Of or pertaining to cosmography.