12-letter words containing ac
- acoustically — with reference to acoustics; from the standpoint of acoustics
- acoustimeter — a portable electronic device for measuring noise levels, especially those of traffic.
- acquaintance — An acquaintance is someone who you have met and know slightly, but not well.
- acquiescence — Acquiescence is agreement to do what someone wants, or acceptance of what they do even though you do not agree with it.
- acquirements — Plural form of acquirement.
- acquisitions — An asset or object bought or obtained, typically by a library or museum.
- acquittances — Plural form of acquittance.
- acrocyanosis — cyanosis of the hands and feet due to poor circulation of the blood
- acrophonetic — relating to the use of symbols to represent sounds
- acrostically — In the manner of an acrostic.
- acrylic acid — a colourless corrosive pungent liquid, miscible with water, used in the manufacture of acrylic resins. Formula: CH2:CHCOOH
- act of faith — an act that demonstrates or tests a person's religious beliefs
- act the goat — to fool around
- actabilities — Plural form of actability.
- actinic rays — light rays, esp. the violet and ultraviolet parts of the spectrum, that produce chemical changes, as in photography
- actinometers — Plural form of actinometer.
- actinometric — Of or pertaining to actinometry.
- actinomorphy — The condition of being actinomorphic.
- actinomycete — any bacterium of the group Actinomycetes, usually filamentous in form
- actinomycins — Plural form of actinomycin.
- actinostelic — Of or possessing an actinostele.
- action grant — funds awarded by the federal government on a competitive basis to cities that submit plans for urban development and are able to show that such plans have the cooperation and endorsement of private investors.
- action group — a group of people who come together to fight for a particular cause or to carry out a particular task
- action movie — film focussed on action sequences
- action point — one of a series of notes drawn up after a meeting stating what tasks need to be carried out and who will do each one
- active layer — (in arctic or subarctic regions) the layer of soil, above the permafrost, that thaws during the summer.
- active voice — a voice of verbs used to indicate that the subject of a sentence is performing the action or causing the event or process described by the verb, as kicked in the boy kicked the football
- activization — to make active; activate.
- acute accent — the diacritical mark (´), used in the writing system of some languages to indicate that the vowel over which it is placed has a special quality (as in French été) or that it receives the strongest stress in the word (as in Spanish hablé)
- acute-angled — (of a triangle) having three acute angles
- acutilingual — having a sharply pointed tongue or mouth, as certain bees.
- acyclicality — The quality of being acyclical.
- acylglycerol — (organic chemistry) Any ester of glycerol; glyceride.
- ada lovelace — (person) (1811-1852) The daughter of Lord Byron, who became the world's first programmer while cooperating with Charles Babbage on the design of his mechanical computing engines in the mid-1800s. The language Ada was named after her.
- aeroacoustic — Relating to aeroacoustics.
- agaricaceous — belonging to the Agaricaceae, a family of fungi including mushrooms having blade-shaped gills on the underside of the cap.
- alencon lace — an elaborate lace worked on a hexagonal mesh and used as a border, or a machine-made copy of this
- alexipharmac — an antidote
- alginic acid — powdery substance extracted from kelp
- amniotic sac — membrane around embryo or foetus
- amphibrachic — Consisting of amphibrachs, metrical feet consisting of either a long syllable between two that are short, or an accented syllable between two that are not accented.
- ampullaceous — shaped like an ampulla or a bladder
- amyl acetate — banana oil
- anacatharsis — severe vomiting
- anacathartic — causing anacatharsis
- anachronical — Not in the correct date order. Chronologically incorrect.
- anachronisms — Plural form of anachronism.
- anachronists — Plural form of anachronist.
- anacolouthon — Alternative spelling of anacoluthon (A break in sequence, that occurs when the scheme of a sentence is changed in its course. Incoherence in a sentence.).
- anacrogynous — having the female sex organs arising from any cell below the apex of the stem, thereby not terminating its growth, as certain liverworts.