8-letter words containing a, c, t
- ach-laut — the voiceless velar fricative sound that is written as ch in Scottish loch or in German ach, often allophonic with the ich-laut
- achroite — the colorless or white variety of tourmaline, often used as a gem.
- achromat — a lens designed to bring light of two chosen wavelengths to the same focal point, thus reducing chromatic aberration
- acidotic — a blood condition in which the bicarbonate concentration is below normal.
- acierate — to change (iron) into steel
- acoemeti — an order of monks founded in the 5th century, distinguished by the continuous nature of their praise and prayer
- acolytes — Plural form of acolyte.
- aconites — Plural form of aconite.
- 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.
- 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.
- acquaint — If you acquaint someone with something, you tell them about it so that they know it. If you acquaint yourself with something, you learn about it.
- acquight — to acquit
- acquited — Simple past tense and past participle of acquit.
- acridity — sharp or biting to the taste or smell; bitterly pungent; irritating to the eyes, nose, etc.: acrid smoke from burning rubber.
- 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
- acrolith — (esp in ancient Greek sculpture) a wooden, often draped figure with only the head, hands, and feet in stone
- 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
- acrylate — a chemical compound used in plastics and resins
- act call — Also called act warning. a call or order from the stage manager summoning performers onstage for the beginning of a performance or act.
- act upon — anything done, being done, or to be done; deed; performance: a heroic act.
- actinian — belonging or pertaining to the order or suborder Actiniaria, comprising the sea anemones.
- actinide — a member of the actinide series
- actinism — that property of ultraviolet light, X-rays, or other radiations, by which chemical changes are produced
- actinium — a radioactive element of the actinide series, occurring as a decay product of uranium. It is used as an alpha-particle source and in neutron production. Symbol: Ac; atomic no: 89; half-life of most stable isotope,227Ac: 21.6 years; relative density: 10.07; melting pt: 1051°C; boiling pt: 3200 ± 300°C
- 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
- activate — If a device or process is activated, something causes it to start working.
- actively — engaged in action; characterized by energetic work, participation, etc.; busy: an active life.
- actives' — engaged in action; characterized by energetic work, participation, etc.; busy: an active life.
- activise — to make active; activate.
- activism — Activism is the process of campaigning in public or working for an organization in order to bring about political or social change.
- activist — An activist is a person who works to bring about political or social changes by campaigning in public or working for an organization.
- activity — Activity is a situation in which a lot of things are happening or being done.
- activize — to make active
- actoress — Alternative form of actress.
- actorish — of, relating to, or characteristic of an actor
- actressy — exaggerated and affected in manner; theatrical
- actually — You use actually to indicate that a situation exists or happened, or to emphasize that it is true.
- actuated — to incite or move to action; impel; motivate: actuated by selfish motives.
- actuates — Third-person singular simple present indicative form of actuate.
- actuator — An actuator is a machine or part of a machine which moves or controls another part in response to an input.
- acuities — sharpness; acuteness; keenness: acuity of vision; acuity of mind.
- aculeate — cutting; pointed
- acupoint — any of the specific points on the body where a needle is inserted in acupuncture or pressure is applied in acupressure