8-letter words containing c, o
- aconitum — any plant belonging to the genus Aconitum, of the buttercup family, having irregular flowers usually in loose clusters, including species with poisonous and medicinal properties.
- acosmism — a belief that no world distinct from God exists
- acosmist — someone who believes that no world distinct from God exists
- acoustic — An acoustic guitar or other instrument is one whose sound is produced without any electrical equipment.
- acrimony — Acrimony is bitter and angry words or quarrels.
- acrobats — Plural form of acrobat.
- acrodont — (of the teeth of some reptiles) having no roots and being fused at the base to the margin of the jawbones
- acrolect — the most standard form of language
- acrolein — a colourless or yellowish flammable poisonous pungent liquid used in the manufacture of resins and pharmaceuticals. Formula: CH2:CHCHO
- acrolith — (esp in ancient Greek sculpture) a wooden, often draped figure with only the head, hands, and feet in stone
- acrology — acrophony.
- acromial — relating to the acromion
- acromion — the outermost edge of the spine of the shoulder blade
- acronyms — a word formed from the initial letters or groups of letters of words in a set phrase or series of words and pronounced as a separate word, as Wac from Women's Army Corps, OPEC from Organization of Petroleum Exporting Countries, or loran from long-range navigation.
- acrosome — a cap-like structure on the tip of a spermatozoon that releases enzymes on encountering the ovum allowing fusion with the ovum in the sexual reproductive process; this part of the process is known as the acrosome reaction
- acrostic — a number of lines of writing, such as a poem, certain letters of which form a word, proverb, etc. A single acrostic is formed by the initial letters of the lines, a double acrostic by the initial and final letters, and a triple acrostic by the initial, middle, and final letters
- acrotism — an absence of pulse
- act upon — anything done, being done, or to be done; deed; performance: a heroic act.
- actinoid — having a radiate form, as a sea anemone or starfish
- actional — Of, pertaining to, or depicting action, especially physical action.
- actioned — Simple past tense and past participle of action.
- actioner — a film with a fast-moving plot, usually containing scenes of violence
- actoress — Alternative form of actress.
- actorish — of, relating to, or characteristic of an actor
- actuator — An actuator is a machine or part of a machine which moves or controls another part in response to an input.
- acupoint — any of the specific points on the body where a needle is inserted in acupuncture or pressure is applied in acupressure
- adductor — a muscle that adducts
- advocaat — a liqueur having a raw egg base
- advocacy — Someone's advocacy of a particular action or plan is their act of recommending it publicly.
- advocate — If you advocate a particular action or plan, you recommend it publicly.
- aerobics — Aerobics is a form of exercise which increases the amount of oxygen in your blood, and strengthens your heart and lungs. The verb that follows aerobics may be either singular or plural.
- aeroduct — an air duct
- agalloch — the fragrant, resinous wood of an East Indian tree, Aquilaria agallocha, of the mezereum family, used as incense in Asia.
- aglycone — a chemical compound
- agnostic — An agnostic believes that it is not possible to know whether God exists or not. Compare atheist.
- agricola — Gnaeus Julius (ˈniːəs ˈdʒuːlɪəs) 40–93 ad, Roman general; governor of Britain who advanced Roman rule north to the Firth of Forth
- air cock — a small tap or valve for controlling the entrance or escape of air from a pipe, chamber, etc.
- air lock — an airtight compartment, with adjustable air pressure, between places that do not have the same air pressure, as between the working compartment of a caisson and the outside
- air-cool — to cool (an engine) by a flow of air
- air-core — having a nonmagnetic core, as one of fiber or plastic, encircled by a coil (air-core coil) or containing one or more such coils: air-core transformer.
- air-lock — to place in or confine to an air lock: to air-lock divers before they descend.
- aircoach — a bus that transports passengers to and from an airport
- airforce — Alternative spelling of air force.
- airlocks — Plural form of airlock.
- alachlor — a herbicide in the chloroacetanilide family
- albacore — a tunny, Thunnus alalunga, occurring mainly in warm regions of the Atlantic and Pacific. It has very long pectoral fins and is a valued food fish
- alcindor — (Ferdinand) Lew(is, Jr.) original name of Abdul-Jabbar.
- alcinous — (in Homer's Odyssey) a Phaeacian king at whose court the shipwrecked Odysseus told of his wanderings
- alcithoe — a daughter of Minyas who was driven mad for mocking Dionysus.
- alcmaeon — a son of Amphiaraus and Eriphyle who commanded the second expedition against Thebes. He killed his mother for sending his father to certain death and was driven mad by the Furies.