12-letter words containing a, p, e, r, i
- antipredator — discouraging or protecting against predators
- antipyretics — Plural form of antipyretic.
- antistrophes — Plural form of antistrophe.
- apartmentize — to build apartments on or in: to apartmentize the downtown area.
- apeirophobia — The fear of infinity and/or of infinite things.
- aperiodicity — not periodic; irregular.
- apostle bird — a gregarious grey-and-brown Australian nest-building bird, Struthidea cinerea
- apostrophise — to address by apostrophe.
- apostrophize — to address an apostrophe to
- apothecaries — Plural form of apothecary.
- appendicular — relating to an appendage or appendicle
- apperceiving — Present participle of apperceive.
- apperception — the attainment of full awareness of a sensation or idea
- apperceptive — conscious perception.
- appercipient — having or using apperception
- appertaining — to belong as a part, right, possession, attribute, etc.; pertain or relate (usually followed by to): privileges that appertain to members of the royal family.
- appletviewer — (web, testing) A simplified web browser used for testing applets. You can't browse HTML with it but you can run applets to test them before embedding them in a web page.
- applied arts — arts that are put to practical use
- appraisement — the act of estimating or judging the nature or value of something or someone.
- appreciating — to be grateful or thankful for: They appreciated his thoughtfulness.
- appreciation — Appreciation of something is the recognition and enjoyment of its good qualities.
- appreciative — An appreciative reaction or comment shows the enjoyment that you are getting from something.
- appreciators — to be grateful or thankful for: They appreciated his thoughtfulness.
- appreciatory — appreciative.
- apprehending — Present participle of apprehend.
- apprehension — Apprehension is a feeling of fear that something bad may happen.
- apprehensive — Someone who is apprehensive is afraid that something bad may happen.
- apprenticing — Present participle of apprentice.
- apprentisage — Obsolete form of apprenticeage.
- appressorium — a flattened hypha of a parasitic fungus that penetrates the host tissues
- appropriable — that can be appropriated
- appropriated — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- appropriates — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approximated — near or approaching a certain state, condition, goal, or standard.
- approximates — near or approaching a certain state, condition, goal, or standard.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archesporium — archespore.
- archetypical — Archetypical means the same as archetypal.
- archipelagic — a large group or chain of islands: the Malay Archipelago.
- archipelagos — Plural form of archipelago.
- archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
- aripiprazole — An antipsychotic drug used in the treatment of schizophrenia etc.
- aristophanes — ?448–?380 bc, Greek comic dramatist, who satirized leading contemporary figures such as Socrates and Euripides. Eleven of his plays are extant, including The Clouds, The Frogs, The Birds, and Lysistrata
- arpeggiation — the writing, playing or singing of arpeggios
- arsenopyrite — a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS
- arsphenamine — a drug containing arsenic, formerly used in the treatment of syphilis and related infections
- arteriopathy — Any disease of the arteries.
- asking price — The asking price of something is the price which the person selling it says that they want for it, although they may accept less.
- asparaginase — an enzyme used in treating leukaemia
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen