13-letter words containing op
- appropriation — An appropriation is an amount of money that a government or organization reserves for a particular purpose.
- appropriative — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- appropriators — Plural form of appropriator.
- arachnophobia — an abnormal fear of spiders
- arachnophobic — an abnormal or pathological fear of spiders.
- archaeopteryx — any of several extinct primitive birds constituting the genus Archaeopteryx, esp A. lithographica, which occurred in Jurassic times and had teeth, a long tail, well-developed wings, and a body covering of feathers
- archbishopric — the rank, office, or jurisdiction of an archbishop
- arithmophobia — the fear of numbers
- arthroscopies — Plural form of arthroscopy.
- as opposed to — You use as opposed to when you want to make it clear that you are talking about one particular thing and not something else.
- astroparticle — (astrophysics) A subatomic particle of cosmic origin.
- astrophysical — Of or pertaining to astrophysics.
- autopolyploid — (of cells, organisms, etc) having more than two sets of haploid chromosomes inherited from a single species
- autoprojector — (theory) A self-applicable partial evaluator.
- bacillophobia — The fear of microbes. Also known as germaphobia.
- bacteriophage — a virus that is parasitic in a bacterium and multiplies within its host, which is destroyed when the new viruses are released
- bacteriophagy — the action of a bacteriophage
- bacterioscopy — the examination of bacteria with a microscope.
- balsam poplar — a poplar tree, Populus balsamifera, of NE North America, having resinous buds and broad heart-shaped leaves
- barbershopper — a member of a barbershop singing group.
- belly-flopper — an awkward, usually unintentional dive in which the front of the body strikes the water horizontally, the abdomen or chest bearing the brunt of the impact.
- benthopelagic — relating to species living at the bottom of the sea
- bibliophagist — a person who devours books
- biopsychology — a field of psychology that deals with the effects of biological factors on behavior.
- bishop sleeve — a full sleeve gathered at the wrist
- bishop violet — a reddish purple.
- bishop's ring — a reddish-brown corona occasionally seen around the sun, caused by volcanic dust in the atmosphere.
- bishop's weed — goutweed.
- bishop's-weed — goutweed.
- blepharoplast — a cylindrical cytoplasmic body in protozoa
- blue copperas — a salt, copper sulfate, CuSO 4 ⋅5H 2 O, occurring naturally as large transparent, deep-blue triclinic crystals, appearing in its anhydrous state as a white powder: used chiefly as a mordant, insecticide, fungicide, and in engraving.
- body shopping — the purchasing of manpower from another country, usually one where wages are cheap
- boom operator — a person who operates a boom
- bottle-opener — A bottle-opener is a metal device for removing caps or tops from bottles.
- boustrophedon — having alternate lines written from right to left and from left to right
- butyrophenone — a drug used to treat psychiatric disorders
- cacophonously — In a cacophonous manner.
- caesaropapism — the theory that the state should have authority over the church in ecclesiastical matters; Erastianism
- cainotophobia — Alternative form of cainophobia.
- cancerophobia — a morbid dread of being afflicted by cancer
- carcinophobia — Inordinate dread of contracting cancer.
- card walloper — (jargon) An EDP programmer who grinds out batch programs that do things like print people's paychecks. Compare code grinder. See also punched card, eighty-column mind.
- cardiopathies — Plural form of cardiopathy.
- carrot-topped — having red hair
- caryophyllene — (organic compound) A sesquiterpene (containing a cyclobutane ring) found in the essential oils of several plants such as clove and pepper.
- catastrophise — Alt form catastrophize.
- catastrophism — an old doctrine, now discarded, that the earth was created and has subsequently been shaped by sudden divine acts which have no logical connection with each other rather than by gradual evolutionary processes
- catastrophist — the doctrine that certain vast geological changes in the earth's history were caused by catastrophes rather than gradual evolutionary processes.
- catastrophize — (obsolete) To end a comedy.
- cecropia moth — a large North American saturniid moth, Hyalophora (or Samia) cecropia, with brightly coloured wings and feathery antennae