12-letter words containing h, o, m, r
- b chromosome — a type of densely staining chromosome of uncertain biological function, found in many plant and animal species.
- 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.
- 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.
- biorhythmics — the study of biorhythms
- bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
- birth mother — the woman who gives birth to a child, regardless of whether she is the genetic mother or subsequently brings up the child
- blabbermouth — a person who talks too much or indiscreetly
- bomb shelter — a shelter, usually underground, in which people take refuge from bomb attacks
- bristlemouth — any of several small, deep-sea fishes of the family Gonostomatidae, having numerous sharp, slender teeth covering the jaws.
- bromhidrosis — the secretion of foul-smelling sweat.
- 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.
- checkerbloom — a Californian malvaceous plant, Sidalcea malvaeflora, with pink or purple flowers
- cheesemonger — a person dealing in cheese, butter, etc
- chemosensory — sensitive to chemical stimuli, as the sensory nerve endings that mediate taste and smell.
- chemosurgery — a method of treating cancer involving the use of chemicals to destroy malignant tissue or skin
- chemotherapy — Chemotherapy is the treatment of disease using chemicals. It is often used in treating cancer.
- chemotrophic — any organism that oxidizes inorganic or organic compounds as its principal energy source.
- chemotropism — the growth response of an organism, esp a plant, to a chemical stimulus
- chimney rock — a column of rock rising above the level of the surrounding area or isolated on the face of a steep slope.
- chimneyboard — a partition or a cover to shut off a fireplace
- chirognomist — someone who studies chirognomy
- 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
- chlorimetric — of or relating to chlorimetry
- chloroformed — Simple past tense and past participle of chloroform.
- chloroformer — someone who administers chloroform
- 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