12-letter words containing c, h, o, t, a
- archaization — Process of becoming or turning something more archaic.
- archegoniate — having archegonia
- archenterons — Plural form of archenteron.
- archeologist — archaeology.
- archeopteryx — A specimen of the species Archaeopteryx lithographica, being the earliest and most primitive known bird, representing a transition in the evolution of dinosaurs to birds.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- arctophilist — a collector of teddy bears
- aristolochia — any of various plants of the genus Aristolochia of the family Aristolochiaceae
- aristophanic — 448?–385? b.c, Athenian comic dramatist.
- arthrobacter — a genus of rod-shaped or spherical bacteria found in the soil.
- arthropathic — disease of the joints.
- arthroscopes — Plural form of arthroscope.
- arthroscopic — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- asphalt rock — a rock formation, usually of limestone or sandstone, containing large amounts of bitumens.
- astrochemist — (chemistry, astronomy) A chemist or astronomer whose speciality is astrochemistry.
- astrophysics — Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
- atheological — having an aversion or resistance to theology
- atheoretical — having no connection with and not founded on theory
- athrocytosis — the capability of a cell to receive and store matter
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atychiphobia — (rare) The fear of failure.
- autochangers — Plural form of autochanger.
- autochthonal — Existing where it was formed or born; native, aboriginal, indigenous.
- autochthones — Alternative spelling of autochthons.
- autochthonic — pertaining to autochthons; aboriginal; indigenous (opposed to heterochthonous).
- autohypnotic — Of or pertaining to autohypnosis; self-hypnotizing.
- autorhythmic — That generates its own rhythm.
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- autotheistic — Self-worshiping; prideful in the extreme.
- azithromycin — A macrolide antibiotic derived from erythromycin.
- bachelorette — A bachelorette is a woman who has never married.
- bathochromic — denoting or relating to a shift to a longer wavelength in the absorption spectrum of a compound
- baton charge — A baton charge is an attacking forward movement made by a large group of policemen carrying batons.
- beacon light — a light signal for shipping
- beaver cloth — beaver1 (def 8).
- bibliothecal — relating to a bibliotheca
- biotechnical — relating to biotechnology
- block heater — an electrically operated immersion heater fitted either to enter the water hose or the water jacket surrounding the cylinder block of a motor to warm the coolant in cold weather.
- book matches — safety matches made of paper and fastened into a small cardboard folder
- boxing match — a competition between two boxers
- branch depot — one of a several depots receiving stock from the same central supplier
- branch point — Electricity. a point in an electric network at which three or more conductors meet.
- cabbage moth — a common brownish noctuid moth, Mamestra brassicae, the larva of which is destructive of cabbages and other plants
- cachinnation — raucous laughter
- cachinnatory — Pertaining to loud or immoderate laughter.
- cadent house — any of the four houses that precede the angles: the third, sixth, ninth, and twelfth houses, which correspond, respectively, to neighborhood and relatives, work and health, philosophy and foreign travel, and secret matters and service to others.
- cadet school — a training establishment for cadets in the army
- camphor tree — a lauraceous evergreen E Asian tree, Cinnamomum camphora, whose aromatic wood yields camphor
- camphorating — Present participle of camphorate.
- canine tooth — canine (def 2).