12-letter words containing a, c, t, o
- 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 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.
- adelie coast — a part of Antarctica, between Wilkes Land and George V Land: the mainland section of the French Southern and Antarctic Territories (claim suspended under the Antarctic Treaty)
- adenectomies — Plural form of adenectomy.
- adiaphoretic — preventing or reducing perspiration.
- adjudication — the act of adjudicating
- adjudicators — Plural form of adjudicator.
- adjudicatory — relating to adjudication
- adolescently — in an adolescent manner
- adscititious — added or supplemental; additional
- aerification — an act of combining with air.
- aeroacoustic — Relating to aeroacoustics.
- aerodonetics — the study of soaring or gliding flight, esp the study of gliders
- aeroelastics — the study of aeroelastic phenomena.
- aeromagnetic — of magnetism in the atmosphere
- aeronautical — Aeronautical means involving or relating to the design and construction of aeroplanes.
- aethrioscope — an instrument which measures temperature changes caused by different conditions of the sky
- aetiological — of or relating to aetiology
- affectations — Plural form of affectation.
- affectionado — Misspelling of aficionado.
- affectionate — If you are affectionate, you show your love or fondness for another person in the way that you behave towards them.
- afro-asiatic — a family of languages of SW Asia and N Africa, consisting of the Semitic, ancient Egyptian, Berber, Cushitic, and Chadic subfamilies
- afrocentrism — centered on Africa or on African-derived cultures, as those of Brazil, Cuba, and Haiti: Afrocentric art.
- after-school — After-school activities are those that are organized for children in the afternoon or evening after they have finished school.
- agamogenetic — Of or pertaining to agamogenesis.
- agnostically — a person who holds that the existence of the ultimate cause, as God, and the essential nature of things are unknown and unknowable, or that human knowledge is limited to experience. Synonyms: disbeliever, nonbeliever, unbeliever; doubter, skeptic, secularist, empiricist; heathen, heretic, infidel, pagan.
- agranulocyte — a white blood cell without granules in its cytoplasm
- agriproducts — Plural form of agriproduct.
- airport code — a three-letter abbreviation of the names of the world's major airports, used especially as an identifier for routing baggage.
- alcaptonuria — Alternative spelling of alkaptonuria.
- alcoholicity — the strength of an alcoholic liquor
- allegoristic — writing or using allegory; interpreting in an allegorical sense.
- allelopathic — relating to or characterized by allelopathy
- allotropical — (chemistry, rare) Of or pertaining to an element that exhibits allotropy.
- alphitomancy — the use of barley meal as a means of divination.
- altercations — Plural form of altercation.
- altiloquence — Pompous language; lofty speech.
- alveolectomy — The surgical reshaping of the alveolar ridge to facilitate dental prosthesis.
- aminobutyric — (organic chemistry) Of or pertaining to any of several isomeric univalent radicals in which a hydrogen atom of a butyric radical is replaced by an amino group.
- amitotically — the direct method of cell division, characterized by simple cleavage of the nucleus without the formation of chromosomes.
- amniotic sac — membrane around embryo or foetus