11-letter words containing c, a, t, r, o
- architector — (obsolete) An architect.
- archtraitor — A chief or transcendent traitor.
- arctic zone — the section of the earth's surface lying between the Arctic Circle and the North Pole.
- arcticology — the scientific study of the Polar Regions.
- arctophilia — the practice of collecting teddy bears
- areocentric — relating to a reference system which has Mars as its centre
- aristocracy — The aristocracy is a class of people in some countries who have a high social rank and special titles.
- aristocrats — Plural form of aristocrat.
- aromaticity — the property of certain planar cyclic conjugated molecules, esp benzene, of behaving like unsaturated molecules and undergoing substitution reactions rather than addition as a result of delocalization of electrons in the ring
- ars poetica — the art of poetry
- art college — a college at which students study and make art of various kinds, such as drawing, painting and sculpture
- arthrectomy — surgical excision of a joint
- arthroscope — a tubular instrument that is inserted into the capsule of a joint to examine the joint, extract tissue, etc
- arthroscopy — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- articulator — a person or thing that articulates
- artiodactyl — any placental mammal of the order Artiodactyla, having hooves with an even number of toes; an even-toed ungulate. The order includes pigs, hippopotamuses, camels, deer, cattle, and antelopes
- ascriptions — Plural form of ascription.
- associators — Plural form of associator.
- asteraceous — belonging to the Asterasceae, an alternative name for the plant family Compositae.
- astrocytoma — a tumour of the nervous system which originates in and consists mainly of astrocytes
- astromancer — divination by means of the stars.
- astrometric — (astronomy) of or relating to astrometry.
- astronautic — Of or pertaining to astronautics.
- atherectomy — the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter.
- atherogenic — causing atheroma
- atmospheric — Atmospheric is used to describe something which relates to the Earth's atmosphere.
- atomtronics — (physics) The design, manufacture and study of analogs of electronics using atoms (especially Bose-Einstein condensates) at low temperature.
- atrociously — extremely or shockingly wicked, cruel, or brutal: an atrocious crime.
- attic order — a low pilaster of any order set into the cornice of a building
- attractions — Plural form of attraction.
- auctioneers — Plural form of auctioneer.
- audiometric — the testing of hearing by means of an audiometer.
- austromancy — Soothsaying, or prediction of events, from observation of the winds or cloud formations.
- authorcraft — the skilled ability of an author
- auto racing — the sport of racing automobiles in which drivers compete against each other on a course designed for racing or on closed public roads.
- auto-erotic — producing sexual excitement or pleasure without association with another person or external stimulation.
- autochanger — a device in a record player or CD player that enables a small stack of records or CDs to be dropped automatically onto the turntable or player tray one at a time and played separately
- autocorrect — a function that attempts to correct errors made by the user when entering text into an electronic device
- autocracies — Plural form of autocracy.
- autographic — of, for, or like an autograph or autographs
- automorphic — shaped and designed after oneself
- autotrophic — (of organisms such as green plants) capable of manufacturing complex organic nutritive compounds from simple inorganic sources such as carbon dioxide, water, and nitrates, using energy from the sun
- auxotrophic — designating or of a mutant organism requiring more nutritional substances than its prototrophic parent because it has lost the ability to make a certain enzyme
- axonometric — of or relating to a projection method of representing three-dimensional objects on a flat surface
- azotobacter — any bacterium of the family Azotobacteriaceae, important in nitrogen fixation in the soil
- backcountry — an area far from cities and towns that is thinly populated and largely undeveloped; hinterland
- backstopper — a wall, wire screen, or the like, serving to prevent a ball from going too far beyond the normal playing area.
- backstroker — a person who swims the backstroke, especially a member of a competitive swimming team who specializes in the backstroke.
- backstrokes — Plural form of backstroke.
- bacteriocin — any protein-based toxin given off by bacteria to prevent the growth of related bacteria nearby