11-letter words containing o, c, t, a, h
- archeometry — the branch of archaeology that deals with the dating of archaeological specimens through specific techniques, as radiocarbon dating and amino-acid dating.
- archicortex — (anatomy) Part of the allocortex, specifically three layered hippocampal cortexes necessary for hippocampus formation.
- architector — (obsolete) An architect.
- archtraitor — A chief or transcendent traitor.
- arctophilia — the practice of collecting teddy bears
- 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.
- 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.
- atomic heat — the product of an element's atomic weight and its specific heat (capacity)
- attophysics — the physics of structures and artefacts with dimensions in the attometre range or of devices, such as lasers, capable of producing pulses with a duration measured in attoseconds
- authorcraft — the skilled ability of an author
- autocephaly — the state of being autocephalous.
- 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
- autochthons — Plural form of autochthon.
- autochthony — pertaining to autochthons; aboriginal; indigenous (opposed to heterochthonous).
- 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
- batholithic — Containing or relating to batholith.
- beach towel — a large towel used on the beach
- bethanechol — a substance, C 7 H 17 ClN 2 O 2 , used to treat urinary retention, especially postoperatively.
- bibliotheca — a library or collection of books
- blastochyle — the fluid in a blastocoel
- boat anchor — 1. Like doorstop but more severe; implies that the offending hardware is irreversibly dead or useless. "That was a working motherboard once. One lightning strike later, instant boat anchor!" 2. A person who just takes up space. 3. Obsolete but still working hardware, especially when used of an old S100-bus hobbyist system; originally a term of annoyance, but became more and more affectionate as the hardware became more and more obsolete.
- booby hatch — a hoodlike covering for a hatchway on a ship
- brachiation — locomotion accomplished by swinging by the arms from one hold to another.
- brachyodont — (of mammals, such as humans) having teeth with short crowns
- bright coal — coal consisting of alternating layers of clarain and vitrain.
- brochantite — a mineral, hydrous copper sulfate, Cu 4 (OH) 6 SO 4 , occurring in green fibrous masses and similar in physical properties to antlerite: formerly a major ore of copper.
- brood patch — a highly vascular, featherless area developed on the abdomen of certain brooding birds that is in direct contact with eggs during incubation and provides additional warmth.
- brown patch — a fungus disease of turf grass that results in circular areas of brown, dead grass.
- brunch coat — a knee-length housecoat.
- cachinatory — Alternative form of cachinnatory.
- cachinnator — One who laughs loudly and immoderately.
- cactus moth — a moth, Cactoblastis cactorum, native to South America and introduced into Australia to control prickly pear cactus, on which the larvae feed.
- cadet cloth — a heavy woolen cloth of double-cloth construction and bluish-gray color, used especially for uniforms at military schools.
- caecotrophy — (biology) In certain mammals, especially rabbits and other lagomorphs, the consumption of food pellets which are naturally produced by means of digestion, retention in the caecum, and expulsion through the anus.
- calathiform — cup-shaped; concave.
- calochortus — any plant of the genus Calochortus, of the lily family, as the mariposa lily and the sego lily.
- camphorated — impregnated or combined with camphor
- camphorates — Plural form of camphorate.
- cannon-shot — the range of a cannon
- canophilist — a person who loves dogs
- cardiopathy — a heart disease or disorder
- carpet moth — any of several geometrid moths with black- (or brown-)and-white mottled wings
- cartography — Cartography is the art or activity of drawing maps and geographical charts.