19-letter words containing t, o, a, d
- neighbourhood watch — a scheme under which members of a community agree together to take responsibility for keeping an eye on each other's property, as a way of preventing crime
- no strings attached — without conditions
- non-confidentiality — spoken, written, acted on, etc., in strict privacy or secrecy; secret: a confidential remark.
- non-distinguishable — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
- non-standardization — to bring to or make of an established standard size, weight, quality, strength, or the like: to standardize manufactured parts.
- nonproprietary drug — A nonproprietary drug is a generic drug that is essentially similar to a drug with a brand name.
- nordrhein-westfalen — German name of North Rhine-Westphalia.
- normal distribution — a theoretical frequency distribution represented by a normal curve.
- north new hyde park — a town on W Long Island, in SE New York.
- northwest ordinance — the act of Congress in 1787 providing for the government of the Northwest Territory and setting forth the steps by which its subdivisions might become states.
- notre-dame-de-paris — Also called Notre Dame de Paris [French naw-truh dam duh pa-ree] /French nɔ trə dam də paˈri/ (Show IPA). a famous early gothic cathedral in Paris (started 1163).
- noughts and crosses — tick-tack-toe (def 1).
- noughts-and-crosses — tick-tack-toe (def 1).
- novell data systems — (company) A small computer hardware company building CP/M Z80-based systems. They later went on to become Novell, Inc. and develop Novell Netware.
- objectfuscated code — (humour, programming) Object-oriented code which has been abstracted to so many levels that no-one can understand it anymore. A play on obfuscated code.
- occupational hazard — a danger or hazard to workers that is inherent in a particular occupation: Silicosis is an occupational hazard of miners.
- old english pattern — a spoon pattern having a stem curving backward at the end.
- old man and the sea — a novel (1952) by Ernest Hemingway.
- old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- olive-backed thrush — Swainson's thrush.
- on no consideration — for no reason whatsoever; never
- on the razor's edge — a sharp-edged instrument used especially for shaving the face or trimming the hair.
- one way and another — on balance
- open the floodgates — If events open the floodgates to something, they make it possible for that thing to happen much more often or much more seriously than before.
- operations director — a director or senior manager who oversees the efficiency of business operations
- optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- optical mark reader — (hardware) (OMR) A special scanning device that can read carefully placed pencil marks on specially designed documents. OMR is frequenty used in forms, questionnaires, and answer-sheets.
- order of the garter — the highest order of British knighthood, instituted by Edward III about 1348.
- orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- out of the ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
- overhead projection — the projection (using an overhead projector) of an enlarged image of a transparency onto a surface above and behind the person using it
- oxidation potential — (in a galvanic cell) the potential of the electrode at which oxidation occurs.
- oxidation-reduction — a chemical reaction between two substances in which one substance is oxidized and the other reduced.
- parathyroid extract — an aqueous preparation obtained from the parathyroid gland of cattle, used in medicine chiefly in cases of parathyroid deficiency and in veterinary medicine in the treatment of tetanic convulsions.
- parathyroid hormone — a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate. Abbreviation: PTH.
- particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
- patrol torpedo boat — PT boat.
- pedestrian crossing — place to cross road
- periodontal disease — any of various mixed bacterial infections that affect the soft tissues and bones supporting the teeth.
- peritoneal dialysis — a form of dialysis in which the peritoneum is used as an autogenous semipermeable membrane
- perpetual adoration — uninterrupted adoration of the Blessed Sacrament.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- photodisintegration — the disintegration of a nucleus, induced by its absorption of a photon.
- pileated woodpecker — a large, black-and-white American woodpecker, Dryocopus pileatus, having a prominent red crest.
- pistol-handle knife — a table knife, especially of the 18th century, having a slightly curved handle resembling the grip of a flintlock pistol.
- plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
- play fast and loose — a dramatic composition or piece; drama.
- pleased to meet you — greeting
- pocket-handkerchief — handkerchief (def 1).