9-letter words containing p, a, t, r
- apertness — the quality of being apert
- apertural — relating to aperture or an aperture
- apertured — having an aperture
- apertures — Plural form of aperture.
- apheretic — Standard spelling of aphaeretic.
- aphrodite — the goddess of love and beauty, daughter of Zeus
- apiarists — Plural form of apiarist.
- apocenter — the point in the orbit of a heavenly body farthest from a primary other than the earth or the sun.
- apparatus — The apparatus of an organization or system is its structure and method of operation.
- apparitor — an officer who summons witnesses and executes the orders of an ecclesiastical and (formerly) a civil court
- appertain — to belong (to) as a part, function, right, etc; relate (to) or be connected (with)
- appetiser — Alternative spelling of appetizer.
- appetizer — An appetizer is the first course of a meal. It consists of a small amount of food.
- applecart — a cart or barrow from which apples and other fruit are sold in the street
- appointer — to name or assign to a position, an office, or the like; designate: to appoint a new treasurer; to appoint a judge to the bench.
- appointor — a person to whom a power to nominate persons to take property is given by deed or will
- apportion — When you apportion something such as blame, you decide how much of it different people deserve or should be given.
- approbate — to accept as valid
- apreciate — Misspelling of appreciate.
- apriorist — a person who believes in apriorism
- apriority — the quality or fact of being a priori
- aprotinin — (protein) A polypeptide, obtained from bovine lung tissue, that acts as a protease inhibitor, and is used in surgery to reduce bleeding.
- archetype — An archetype is something that is considered to be a perfect or typical example of a particular kind of person or thing, because it has all their most important characteristics.
- arhatship — the state of having achieved enlightenment, which is the ultimate goal of Theravada Buddhists
- art paper — a high-quality type of paper having a smooth coating of china clay or similar substance on it
- arthropod — any invertebrate of the phylum Arthropoda, having jointed limbs, a segmented body, and an exoskeleton made of chitin. The group includes the crustaceans, insects, arachnids, and centipedes
- aspartame — an artificial sweetener produced from aspartic acid. Formula: C14H18N2O5
- aspartate — a salt formed from the amalgamation of a base and aspartic acid
- asphalter — a person who spreads a layer of asphalt
- aspirants — Plural form of aspirant.
- aspirated — (of a stop) articulated with some force, so that breath escapes with audible friction as the stop is released
- aspirates — Phonetics. to articulate (a speech sound, especially a stop) so as to produce an audible puff of breath, as with the first t of total, the second t being unaspirated. to articulate (the beginning of a word or syllable) with an h -sound, as in which, pronounced (hwich), or hitch as opposed to witch or itch.
- aspirator — a device employing suction, such as a jet pump or one for removing fluids from a body cavity
- atemporal — having the quality of being uninfluenced, ungoverned or unchanged by time
- atom trap — a device in which atoms or particles are slowed by the use of lasers and then confined to a small region of space.
- atrophied — exhibiting or affected with atrophy; wasted; withered; shriveled: an atrophied arm; an atrophied talent.
- atrophies — Also, atrophia [uh-troh-fee-uh] /əˈtroʊ fi ə/ (Show IPA). Pathology. a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage.
- attempter — One who attempts.
- auraptene — A bioactive monoterpene coumarin ether that helps to prevent degenerative diseases, first isolated from the genus Citrus.
- austemper — to harden (steel) by heating and quenching to render it austenitic.
- autograph — An autograph is the signature of someone famous which is specially written for a fan to keep.
- autoreply — a facility for sending automated replies to email messages
- autospore — a nonmotile algal spore that develops adult characteristics before being released
- autotroph — any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists.
- auxotroph — a mutant strain of microorganism having nutritional requirements additional to those of the normal organism
- azeotrope — a mixture of liquids that boils at a constant temperature, at a given pressure, without change of composition
- azeotropy — the existence of azeotropes
- backprint — The mark or impression left by a person's back having been pressed against a surface.
- backstrap — A pull strap extending the backstay of a boot or shoe.
- bankrupts — Third-person singular simple present indicative form of bankrupt.