12-letter words containing c, h, o, r
- approachment — (archaic) approach.
- arachnophobe — a person who is afraid of spiders
- arch support — a rigid support placed inside a shoe so that its molded form fits the arch of the foot and relieves strain on the muscles of the foot while walking, standing, etc.
- archaeologic — Pertaining to archaeology.
- archaeometry — the use of science and modern technology in archaeology to examine and interpret archaeological remains
- archaic homo — collectively, the very robust, regionally differentiated human populations that lived in Europe, Asia, the Middle East, and Africa from 35,000 to 200,000 years ago.
- archaization — Process of becoming or turning something more archaic.
- archdeaconry — the office, rank, or duties of an archdeacon
- archdiocesan — Relating to an archdiocese.
- archdioceses — Plural form of archdiocese.
- 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.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archesporium — archespore.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- archilochian — denoting or relating to the 7th century bc Greek poet Archilochus or his verse, esp the iambic trimeters or trochaic tetrameters used by him
- archipelagos — Plural form of archipelago.
- archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
- archosaurian — belonging to or characteristic of the archosaurs
- 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.
- ash-coloured — silver-grey in colour
- 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.
- asynchronies — a lack of synchronism or coincidence in time.
- asynchronism — a lack of synchronism; occurrence at different times
- asynchronous — An asynchronous electric machine is one in which the magnetic field and the rotation are not exactly the same.
- 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.
- autochangers — Plural form of autochanger.
- autorhythmic — That generates its own rhythm.
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- azithromycin — A macrolide antibiotic derived from erythromycin.
- b chromosome — a type of densely staining chromosome of uncertain biological function, found in many plant and animal species.
- bachelor pad — a flat in which a bachelor lives
- bachelorette — A bachelorette is a woman who has never married.
- bachelorhood — the state of being a bachelor.
- bachelorship — the state of being a bachelor; bachelorhood
- 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.
- beach-comber — a person who lives by gathering salable articles of jetsam, refuse, etc., from beaches.