12-letter words containing r, a, d, i, o
- antiperiodic — efficacious against recurring attacks of a disease
- antipredator — discouraging or protecting against predators
- aperiodicity — not periodic; irregular.
- aphrodisiacs — Plural form of aphrodisiac.
- apostle bird — a gregarious grey-and-brown Australian nest-building bird, Struthidea cinerea
- appropriated — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approximated — near or approaching a certain state, condition, goal, or standard.
- archdiocesan — Relating to an archdiocese.
- archdioceses — Plural form of archdiocese.
- arfvedsonite — a type of hornblende with the composition Na3(Fe,Mg)4FeSi8O22(OH)2
- aria da capo — an operatic aria in three sections with the first and third sections alike and the middle section contrasting.
- art director — a person responsible for the sets and costumes in a film
- artiodactyle — (zoology) One of the Artiodactyla, a group of ungulates.
- artiodactyls — Plural form of artiodactyl.
- astrodynamic — Pertaining to astrodynamics.
- auctioneered — Simple past tense and past participle of auctioneer.
- auditorially — Anatomy, Physiology. pertaining to hearing, to the sense of hearing, or to the organs of hearing.
- autodiallers — Plural form of autodialler.
- bacteriocide — Alternative form of bactericide.
- banderillero — a bullfighter's assistant who sticks banderillas into the bull
- barium oxide — a white or yellowish-white poisonous heavy powder used esp as a dehydrating agent. Formula: BaO
- barodynamics — the branch of mechanics concerned with heavy structures
- basidiocarps — Plural form of basidiocarp.
- basidiospore — one of the spores, usually four in number, produced in a basidium
- bearing down — to hold up; support: to bear the weight of the roof.
- biohazardous — a pathogen, especially one used in or produced by biological research.
- birthday boy — the boy or man whose birthday is being celebrated
- boarding out — the local-authority practice of placing a client in a foster family or voluntary establishment and paying for it
- boardsailing — windsurfing
- body repairs — repairs to the bodywork of cars
- bodyboarding — the sport of surfing using a bodyboard
- boogie board — a small, flexible plastic surfboard, ridden lying down.
- born-digital — relating to or noting documents, images, etc., that are created and managed in electronic form: electronic preservation of born-digital content; a born-digital e-book that will not be available in print.
- boulevardier — (originally in Paris) a fashionable man, esp one who frequents public places
- braggadocios — empty boasting; bragging.
- bring around — If you bring someone around when they are unconscious, you make them become conscious again.
- broad-minded — If you describe someone as broad-minded, you approve of them because they are willing to accept types of behaviour which other people consider immoral.
- broadcasting — Broadcasting is the making and sending out of television and radio programmes.
- buffalo bird — a cowbird, Molothrus ater, of North America.
- bur marigold — any plant of the genus Bidens that has yellow flowers and pointed fruits that cling to fur and clothing: family Asteraceae (composites)
- burial mound — a barrow
- campodeiform — resembling insects of the genus Campodea
- caproic acid — oily acid found in milk
- carbonadoing — Present participle of carbonado.
- cardan joint — type of universal joint
- cardioactive — of or relating to a drug or other substance affecting the function of the heart.
- cardiographs — Plural form of cardiograph.
- cardiography — electrocardiograph.
- cardiologist — A cardiologist is a doctor who specializes in the heart and its diseases.
- cardiomegaly — abnormal enlargement of the heart.