10-letter words containing a, c, o, r
- acronyming — a word formed from the initial letters or groups of letters of words in a set phrase or series of words and pronounced as a separate word, as Wac from Women's Army Corps, OPEC from Organization of Petroleum Exporting Countries, or loran from long-range navigation.
- acronymous — a word formed from the initial letters or groups of letters of words in a set phrase or series of words and pronounced as a separate word, as Wac from Women's Army Corps, OPEC from Organization of Petroleum Exporting Countries, or loran from long-range navigation.
- acrophobia — abnormal fear or dread of being at a great height
- acrophobic — a pathological fear of heights.
- acrophonic — the use of what was originally a logogram as a phonetic symbol for the initial sound of the word the logogram represented, as, in Semitic writing, the use of a picture of a shepherd's crook to represent the sound (l), the first sound of lamed, the Hebrew word for a shepherd's crook.
- acrostical — relating to an acrostic
- acroterial — relating to an acroter
- acroterion — acroterium.
- acroterium — an ornament positioned on top of an acroter
- act of war — an aggressive act, usually employing military force, which constitutes an immediate threat to peace
- actiniform — having radial form; rayed
- actinogram — the record produced by the action of an actinograph.
- activators — Plural form of activator.
- acyl group — the univalent group RCO–, where R is any organic group attached to one bond of the carbonyl group.
- acyrologia — (rhetoric) inexact, inappropriate or improper use of a word.
- ad-hockery — reliance on temporary solutions rather than on consistent, long-term plans.
- adhocratic — Relating to adhocracy.
- adirondack — a member of an Algonquian people living mainly north of the St. Lawrence River.
- advocaters — Plural form of advocater.
- advocators — to speak or write in favor of; support or urge by argument; recommend publicly: He advocated higher salaries for teachers.
- advocatory — of an advocate
- aeciospore — any of the spores produced in an aecium of the rust fungi, which spread to and infect the primary host
- aerobacter — any bacteria of a former genus (Aerobacter) normally found in the intestine: now in either of two genera (Enterobacter or Klebsiella)
- aerobatics — Aerobatics are skilful displays of flying, usually to entertain people watching from the ground.
- aerobeacon — A light used to warn aircraft away from tall structures.
- aerobicize — (of a person) to perform aerobics
- aerobiotic — Of or pertaining to aerobiosis.
- aeromancer — A practitioner of aeromancy.
- aerometric — Describing any measurement of a physical property of air (or other gases), but especially of temperature, pressure and velocity.
- aeronautic — relating to air companies
- aerophilic — (biology, especially of microorganisms) That thrive in the presence of molecular oxygen.
- aeroponics — aeroculture.
- aeroscepsy — perception of atmospheric conditions, as the perception of odors by the antennae of insects.
- aerostatic — of or relating to aerostatics.
- aerotactic — of movement towards or away from oxygen
- aerotropic — of or relating to the growth of plants towards or away from oxygen
- affordance — A potential action that is made possible by a given object or environment; especially, one that is made easily discoverable.
- afro-chain — (in the Caribbean) a large chain necklace with a central pendant: usually worn with a dashiki by men
- afro-cuban — of or relating to a type of jazz influenced by Cuban variants of African rhythms
- aftershock — Aftershocks are smaller earthquakes which occur after a large earthquake.
- agricultor — (archaic) An agriculturist; a farmer.
- agronomics — the branch of economics dealing with the distribution, management, and productivity of land
- agrypnotic — inducing, relating to, or characterized by insomnia
- ahorseback — on horseback
- air pocket — a localized region of low air density or a descending air current, causing an aircraft to suffer an abrupt decrease in height
- air police — members of an air force assigned to carry on police duties
- air-cooled — An air-cooled engine is prevented from getting too hot when it is running by cool air that passes over it, rather than being cooled by a liquid.
- akaryocyte — A cell that has no nucleus.
- alacritous — cheerful readiness, promptness, or willingness: We accepted the invitation with alacrity.
- alarmclock — Misspelling of alarm clock.