12-letter words containing i, r
- antithrombin — a substance that counteracts the action of thrombin, preventing the formation of blood clots
- antitumoural — acting against or upon tumours
- anton sailer — Anton [ahn-tohn] /ˈɑn toʊn/ (Show IPA), ("Toni") 1935–2009, Austrian skier.
- aortic valve — a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle.
- aortographic — relating to an aortography or aortography
- 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.
- aphoristical — Alternative form of aphoristic.
- aphrodisiacs — Plural form of aphrodisiac.
- apiculturist — beekeeping, especially on a commercial scale for the sale of honey.
- apochromatic — (of a lens) almost free from spherical and chromatic aberration
- 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.
- apparatchiks — a member of an apparat, especially in a Communist country.
- apparitional — of or relating to an apparition or apparitions; ghostly, spectral
- 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
- appoggiatura — an ornament consisting of a nonharmonic note (short or long) preceding a harmonic one either before or on the stress
- apportioning — Present participle of apportion.
- appraisement — the act of estimating or judging the nature or value of something or someone.
- appraisingly — to estimate the monetary value of; determine the worth of; assess: We had an expert appraise the house before we bought it.
- 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
- approbations — approval; commendation.
- 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.
- appropriator — 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.
- approximator — Something that approximates.
- apricot tart — a pastry case filled with apricots