23-letter words containing d, y, e, t, r, a
- polybrominated biphenyl — PBB.
- preclinical safety data — Preclinical safety data is information about the safety of a medication that is assessed before clinical trials.
- private limited company — a company whose shares can be bought by the public
- psychomotor retardation — a generalized slowing of psychological and physical activity, frequently occurring as a symptom of severe depression.
- quantum electrodynamics — the quantum field theory that deals with the electromagnetic field and its interaction with electrons and positrons. Abbreviation: QED.
- real simple syndication — (spelling) Illiterate form of Really Simple Syndication.
- refinery waste disposal — Refinery waste disposal is the system for dealing with waste materials, especially hazardous ones, in a refinery.
- relativity of knowledge — the theory that all knowledge is relative to the mind, or that things can be known only through their effects on the mind, and that consequently there can be no knowledge of reality as it is in itself
- right circular cylinder — a cylinder generated by the revolution of a rectangle about one of its sides.
- rsa data security, inc. — (cryptography, company) (After Rivest, Shamir, Adleman - see RSA) A recognised world leader in cryptography, with millions of copies of its software encryption and authentication installed and in use worldwide. RSA's technologies are the global de facto standard for public key cryptography and digital signatures, and are part of existing and proposed standards for the Internet, ITU-T, ISO, ANSI, PKCS, IEEE and business and financial networks around the world.
- secondary seventh chord — a chord formed by superposition of three thirds upon any degree of the scale except the dominant.
- secondary sex character — any of a number of manifestations, as development of breasts or beard, muscularity, distribution of fat tissue, and change of pitch in voice, specific to each sex and incipient at puberty but not essential to reproduction.
- security association id — (networking) (SAID) A 32-bit field added to packet headers for encryption and authentication in the proposed Internet Protocol Version 6.
- social democratic party — History/Historical. a political party in Germany advocating a form of social organization based on the economic and political ideology of Karl Marx.
- sodium tripolyphosphate — a white powder, Na 5 P 3 O 1 0 , used as a water softener, sequestering agent, and food additive.
- state coordinate system — a system of right-angled planar coordinates established by the U.S. Coast and Geodetic Survey for each state in the United States.
- take sth in your stride — In British English, if you take a problem or difficulty in your stride, you deal with it calmly and easily. The American expression is take something in stride.
- the whys and wherefores — The whys and wherefores of something are the reasons for it.
- to be at your wit's end — If you say that you are at your wits' end, you are emphasizing that you are so worried and exhausted by problems or difficulties that you do not know what to do next.
- to have your hands full — If you have your hands full with something, you are very busy because of it.
- transcendental analytic — (in transcendental logic) the study of the means by which the mind categorizes data from the sensory manifold.
- twenty-fourth amendment — an amendment to the U.S. Constitution, ratified in 1964, forbidding the use of the poll tax as a requirement for voting in national or U.S. Congressional elections.
- ventricular tachycardia — a cardiac arrhythmia in which the muscles of the ventricles contract irregularly in a rapid, uncoordinated manner, impairing the normal pumping of blood.
- visual display terminal — video display terminal. Abbreviation: VDT.
- yellow-throated warbler — a warbler, Dendroica dominica, of the eastern U.S., having a yellow throat and breast.