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18-letter words containing d, r, y

  • medical dictionary — a specialized dictionary covering terms used in the health professions by doctors, nurses, and others involved in allied health care services. A dictionary with authoritative spellings and definitions is a particularly crucial resource in medicine, where a misspelling or misunderstanding can have unfortunate consequences for people under care. Print dictionaries in this field may be sorted alphabetically or may be categorized according to medical specializations or by the various systems in the body, as the immune system and the respiratory system. The online Medical Dictionary on Dictionary.com allows alphabetical browsing in the combined electronic versions of more than one authoritative medical reference, insuring access to correct spellings, as well as immediate, direct access to a known search term typed into the search box on the site: A medical dictionary reveals that large numbers of medical terms are formed from the same Latin and Greek parts combined and recombined.
  • meniere's syndrome — a disease of the labyrinth of the ear, characterized by deafness, ringing in the ears, dizziness, and nausea.
  • mercury delay line — (storage, history)   An archaic first-in first-out fixed time period data storage device using acoustic transducers to transmit data as waves in a trough or tube of mercury. EDSAC (Cambridge) and UNIVAC I used delay lines.
  • metabolic syndrome — Pathology. a group of medical conditions present simultaneously in a patient, as high blood pressure, low HDL cholesterol levels, and an excess of abdominal fat, that increases a person's risk of heart disease, stroke, and diabetes. Also called insulin resistance syndrome.
  • methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
  • methylene chloride — a colorless, volatile liquid, CH 2 Cl 2 , used chiefly as a solvent, as a refrigerant, and as a local anesthetic in dentistry.
  • methylprednisolone — A synthetic glucocorticoid drug, with chemical formula C22H30O5.
  • milkweed butterfly — monarch butterfly.
  • minority president — (in the US) a president who has been elected by the largest number of votes cast but not by a majority of the electorate
  • money for old rope — If you describe a payment as money for old rope, you are emphasizing that it is earned very easily, for very little effort.
  • monophosphorylated — (biochemistry) phosphorylated with a single unit of phosphoric acid.
  • mucopolysaccharide — (formerly) glycosaminoglycan.
  • muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
  • my lips are sealed — If you tell someone that your lips are sealed, you are promising them that you will keep a secret that they have told you.
  • needlestick injury — an injury that is caused by accidentally pricking the skin with a hypodermic needle
  • network byte order — (networking)   The order in which the bytes of a multi-byte number are transmitted on a network - most significant byte first (as in "big-endian" storage). This may or may not match the order in which numbers are normally stored in memory for a particular processor.
  • neuroendocrinology — the study of the anatomical and physiological interactions between the nervous and endocrine systems.
  • neuropsychodynamic — Of or pertaining to neuropsychodynamics.
  • normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
  • numerical identity — the relation that holds between two relata when they are the selfsame entity, that is, when the terms designating them have the same reference
  • oak-leaf hydrangea — a shrub, Hydrangea quercifolia, of the southeastern U.S., having lobed leaves and pyramidal clusters of white flowers.
  • officer of the day — an officer who has charge of the guard and prisoners on an assigned day at a military installation. Abbreviation: OD, O.D., O.O.D.
  • old curiosity shop — a novel (1840–41) by Dickens.
  • organic solidarity — social cohesiveness that is based on division of labor and interdependence and is characteristic of complex, industrial societies.
  • orthopedic surgery — corrective operation on bones or joints
  • overdraft facility — a facility (of a bank or building-society cheque account) that allows a withdrawal of money in excess of the account's credit balance
  • parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • people's democracy — (in Communist ideology) a country or form of government in transition from bourgeois democracy to socialism. In this stage there is more than one class, the largest being the proletariat, led by the Communist Party, which is therefore the dominant power
  • perforated tracery — tracery, as in early Gothic architecture, formed of cut or pierced slabs of stone set on edge with the flat side outward.
  • periodic inventory — Periodic inventory is a method of valuing inventory, usually at the end of accounting periods, by physically counting all merchandise held in stock at that time.
  • personal bodyguard — a person employed to protect a particular person
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • phthalic anhydride — a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
  • piperonyl butoxide — a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.
  • play the race card — to introduce the subject of race into a public discussion, esp to gain a strategic advantage
  • plenary indulgence — a remission of the total temporal punishment that is still due to sin after absolution. Compare indulgence (def 6).
  • polyvinyl chloride — a white, water-insoluble, thermoplastic resin, derived by the polymerization of vinyl chloride: used chiefly for thin coatings, insulation, and pipings.
  • population pyramid — a graph showing the distribution of a population by sex, age, etc.
  • portrait of a lady — a novel (1881) by Henry James.
  • positively charged — having a positive charge
  • postviral syndrome — debilitating condition occurring as a sequel to viral illness
  • pre-filled syringe — A pre-filled syringe is a disposable syringe that is supplied already loaded with the substance to be injected.
  • product life cycle — the four stages (introduction, growth, maturity, and decline) into one of which the sales of a product fall during its market life
  • production company — an organization which produces, films, plays, television or radio programmes
  • productivity bonus — an extra payment made to workers for being more productive or yielding more favourable results than normal
  • programme of study — the prescribed syllabus that pupils must be taught at each key stage in the National Curriculum
  • property developer — person: deals in real estate
  • protective custody — detention of a person by the police solely as protection against a possible attack or reprisal by someone.
  • protein deficiency — a lack or insuffiency of protein
  • provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
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