13-letter words containing a, s, p, r
- apperceptions — Plural form of apperception.
- appersonation — the unconscious assumption of the personality characteristics of another, usually well known, person.
- appoggiaturas — Plural form of appoggiatura.
- appreciations — Plural form of appreciation.
- apprehensible — capable of being comprehended or grasped mentally
- apprehensibly — In an apprehensive manner; cautiously.
- apprehensions — Plural form of apprehension.
- approach shot — a shot made to or towards the green after a tee shot
- appropriators — Plural form of appropriator.
- appurtenances — accessories or equipment
- april showers — showers falling in April, generally considered a showery month
- apron strings — If you say that someone is tied to another person's apron strings, you mean that they are controlled or influenced too much by the other person.
- archbishopric — the rank, office, or jurisdiction of an archbishop
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- archipelagoes — Plural form of archipelago.
- arthroscopies — Plural form of arthroscopy.
- asexual spore — a spore that is the result of asexual reproduction
- aspartic acid — nonessential amino acid that is a component of proteins and acts as a neurotransmitter
- aspergillosis — a rare fungal infection, esp of the mucous membranes or lungs, caused by various species of Aspergillus
- asphalt paper — paper treated with asphalt, as to increase toughness or water resistance.
- aspirationals — Plural form of aspirational.
- asthenosphere — a thin semifluid layer of the earth (100–200 km thick), below the outer rigid lithosphere, forming part of the mantle and thought to be able to flow vertically and horizontally, enabling sections of lithosphere to subside, rise, and undergo lateral movement
- astroparticle — (astrophysics) A subatomic particle of cosmic origin.
- astrophysical — Of or pertaining to astrophysics.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- audiographics — audiographic teleconferencing
- austrian pine — an evergreen tree, Pina nigra austriaca
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- average speed — a scalar measure of the rate of movement of a body expressed as the distance travelled divided by the time taken
- awe-inspiring — If you describe someone or something as awe-inspiring, you are emphasizing that you think that they are remarkable and amazing, although sometimes rather frightening.
- baby primrose — a tender primrose, Primula forbesii, native to China and Burma, having white, hairy leaves and rose- or lilac-colored flowers with a yellow center.
- back pressure — the pressure that opposes the motion of a piston on its exhaust stroke in an internal-combustion engine
- bacterioscopy — the examination of bacteria with a microscope.
- balch springs — a town in NE Texas.
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- balsam poplar — a poplar tree, Populus balsamifera, of NE North America, having resinous buds and broad heart-shaped leaves
- balsam spruce — either of two North American coniferous trees of the genus Picea, P. pungens (the blue spruce) or P. engelmanni
- banana spider — a large, yellowish, tropical crab spider (Heteropoda venatoria) occasionally found in bunches of bananas shipped to the Temperate Zones
- band spectrum — a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules
- bandspreading — an additional tuning control in some radio receivers whereby a selected narrow band of frequencies can be spread over a wider frequency band, in order to give finer control of tuning
- barbary sheep — aoudad
- barber's pole — a sign outside a barber's shop consisting of a pole painted with red and white spiral stripes
- barbershopper — a member of a barbershop singing group.
- barley stripe — a disease of barley, characterized by blighted heads and chlorotic, brown, or frayed stripes on the leaves, caused by a fungus, Helminthosporium gramineum.
- baroreceptors — Plural form of baroreceptor.
- barred spiral — a spiral galaxy in which the arms originate at the ends of a bar-shaped nucleus
- barrel-shaped — having the shape of a barrel
- barristership — the office of a barrister
- basic process — Military. basic training. a soldier or airman receiving basic training.
- basidiospores — Plural form of basidiospore.