13-letter words containing a, r, s, y
- polyribosomal — relating to a polyribosome
- polysomnogram — a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. Abbreviation: PSG.
- portal system — a vascular arrangement in which blood from the capillaries of one organ is transported to the capillaries of another organ by a connecting vein or veins.
- possessionary — of, relating to, or characterized by possession
- post-tertiary — denoting or formed after the Tertiary period of geological time
- postcranially — affecting the postcranium
- postsecondary — of or relating to education beyond high school: She completed her postsecondary education at a two-year college.
- potter's clay — a clay, suitably plastic and free of iron and other impurities, for use by potters.
- prairie style — the style of the architects of the Prairie School.
- prefix syntax — prefix notation
- presentiality — the state of being present
- press gallery — a press section, especially in a legislative chamber.
- press-agentry — the vocation or responsibilities of a press agent.
- primary tense — in Latin, Greek, and Sanskrit, a tense referring to present or future time
- priority case — a matter that takes precedence over others
- prismatically — of, relating to, or like a prism.
- private study — the act or process of studying outwith classes
- processionary — of, relating to, or moving in a procession
- prosopography — a study of a collection of persons or characters, especially their appearances, careers, personalities, etc., within a historical, literary, or social context.
- prostatectomy — excision of part or all of the prostate gland.
- provisionally — providing or serving for the time being only; existing only until permanently or properly replaced; temporary: a provisional government.
- psychobabbler — a person who uses psychobabble
- psychographer — a person who writes a psychograph; a psychological or psychographic biographer.
- psychographic — Psychology. a graph indicating the relative strength of the personality traits of an individual.
- psychotherapy — the treatment of psychological disorders or maladjustments by a professional technique, as psychoanalysis, group therapy, or behavioral therapy.
- pyrophosphate — a salt or ester of pyrophosphoric acid.
- quality press — the more serious newspapers which give detailed accounts of world events, as well as reports on business, culture, and society
- quarrelsomely — In a quarrelsome manner.
- quasi-crystal — a group of atoms resembling a crystal but not having symmetrical plane faces
- quasimilitary — Having certain military aspects.
- raspberry jam — jam made using raspberries
- ratushinskaya — Irina (ɪˈriːnə). born 1954, Russian poet and writer: imprisoned (1983–86) in a Soviet labour camp on charges of subversion. Her publications include Poems (1984), Grey is the Colour of Hope (1988), and The Odessans (1992)
- ray tomlinson — (person) An engineer at Bolt Beranek and Newman who, in July 1972 while designing the first[?] electronic mail program, chose the commercial at symbol "@" to separate the user name from the computer name.
- rayleigh disc — a small light disc suspended in the path of a sound wave, used to measure the intensity of the sound by analysing the resulting deflection of the disc
- rayleigh disk — a small circular disk, usually of mica, that is suspended from a fiber and tends to be deflected at right angles to a stream of air, indicating by its deflection the intensity of a sound wave.
- re-entry visa — a visa that allows someone to enter a country again several times
- realistically — interested in, concerned with, or based on what is real or practical: a realistic estimate of costs; a realistic planner.
- reality-based — (especially of television) portraying or alleging to portray events as they actually happened.
- reasonability — agreeable to reason or sound judgment; logical: a reasonable choice for chairman.
- recrystallize — to become crystallized again.
- relay station — a radio station that receives radio signals and retransmits them, in order to extend their range
- releasability — to free from confinement, bondage, obligation, pain, etc.; let go: to release a prisoner; to release someone from a debt.
- remonstrantly — in a remonstrant or opposing manner
- remonstratory — characterized by protest or expostulation
- resectability — the state of being resectable
- residentially — of or relating to residence or to residences: a residential requirement for a doctorate.
- restless cavy — a wild guinea pig.
- restoratively — in a restorative manner
- resystematize — to systematize again
- rhyming slang — a form of slang in which a rhyming word or phrase is substituted for the word intended, as Kate and Sidney for steak and kidney or khaki rocks for army socks.