11-letter words containing c, o, a
- araliaceous — of, relating to, or belonging to the Araliaceae, a chiefly tropical family of trees, shrubs, or woody climbers having small clusters of whitish or greenish flowers. The family includes the ivy and ginseng
- arboraceous — resembling a tree
- arborescent — having the shape or characteristics of a tree
- arc-boutant — flying buttress.
- archaeocyte — (in sponges) a type of amoebocyte capable of developing into other types of cells, especially reproductive cells.
- archaeology — Archaeology is the study of the societies and peoples of the past by examining the remains of their buildings, tools, and other objects.
- archaeornis — an extinct primitive Jurassic bird, formerly placed in the genus Archaeornis but now thought to be a species of archaeopteryx
- archaeozoic — Archeozoic
- archbishops — Plural form of archbishop.
- archdeacons — Plural form of archdeacon.
- archdiocese — An archdiocese is the area over which an archbishop has control.
- archdukedom — the territory ruled by an archduke or archduchess
- archegonial — relating to an archegonium
- archegonium — a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base
- archenteron — the cavity within an embryo at the gastrula stage of development that eventually becomes the digestive cavity
- archeologic — (American spelling) alternative spelling of archaeologic.
- 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.
- archilochus — 7th century bc, Greek poet of Paros, notable for using his own experience as subject matter
- archipelago — An archipelago is a group of islands, especially small islands.
- 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
- area office — a part of a business, organization, etc which is the most important office in a specific geographical area
- arenicolous — growing or living in sand or sandy places
- areocentric — relating to a reference system which has Mars as its centre
- areographic — relating to areography
- 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.
- armored car — any of various vehicles covered with armor plate, as a truck for carrying money to or from a bank
- armour-clad — wearing armour
- 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
- as concerns — in regard to; with reference to; about
- ascensional — (astronomy) Relating to ascension.
- asciibonics — (chat) (From ASCII and Ebonics) A style of text communication in English which is most common on talk systems such as irc. Its notable characteristics are: Typing all in lowercase (and occasionally all in uppercase). Copious use of abbreviations of the sort "u" for "you" "1" for "one" (and therefore "some1" for "someone", "ne1" for "anyone"), "2" for "to", "r" for "are", etc. A general lack of punctuation, except for strings of question marks and exclamation marks. Common use of the idiom "m or f?", meant to elicit a statement of the listener's gender. Typical extended discourse in ASCIIbonics: "hey wasup ne1 want 2 cyber?" "m or f?" ASCIIbonics is similar to the way B1FF talked, although B1FF used more punctuation (lots more), and used all uppercase, rather than all lowercase. What's more, B1FF was only interested in warez, and so never asked "m or f?". It has been widely observed that some of the purest examples of ASCIIbonics come from non-native speakers of English. The phenomenon of ASCIIbonics predates by several years the use of the word "ASCIIbonics", as the word could only have been coined in or after late 1996, when "Ebonics" was first used in the US media to denote the US English dialects known in the linguistic literature as "Black Vernacular English".
- ascititious — having been added to from something inessential or separate
- ascomycetes — any fungus of the phylum Ascomycota (or class Ascomycetes), including the molds and truffles, characterized by bearing the sexual spores in a sac (as distinguished from basidiomycete).
- ascriptions — Plural form of ascription.
- associating — to connect or bring into relation, as thought, feeling, memory, etc.: Many people associate dark clouds with depression and gloom.
- association — An association is an official group of people who have the same job, aim, or interest.
- associative — Associative thoughts are things that you think of because you see, hear, or think of something that reminds you of those things or which you associate with those things.