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16-letter words containing a, r, o, d

  • once and for all — former; having at one time been: the once and future king.
  • one for the road — a long, narrow stretch with a smoothed or paved surface, made for traveling by motor vehicle, carriage, etc., between two or more points; street or highway.
  • one-armed bandit — slot machine (def 1).
  • operating budget — money allocated to a project
  • orange marmalade — preserve made from oranges
  • orange men's day — July 12, an annual celebration in Northern Ireland and certain cities having a large Irish section, especially Liverpool, to mark both the victory of William III over James II at the Battle of the Boyne, July 1, 1690, and the Battle of Augbrim, July 12, 1690.
  • order of the day — the agenda for an assembly, meeting, group, or organization.
  • ordinary jubilee — the celebration of any of certain anniversaries, as the twenty-fifth (silver jubilee) fiftieth (golden jubilee) or sixtieth or seventy-fifth (diamond jubilee)
  • ordnance factory — a factory that makes military weapons and ammunition
  • organized labour — labour carried out by workers in trade unions, or the workers themselves
  • oriental emerald — a green variety of corundum used as a gemstone
  • orographic cloud — any cloud whose existence and form are largely controlled by the disturbed flow of air over and around mountains, as the banner cloud and crest cloud.
  • orthodox judaism — Judaism as observed by Orthodox Jews.
  • orthodoxy sunday — a solemn festival held on the first Sunday of Lent (Orthodoxy Sunday) commemorating the restoration of the use of icons in the church (a.d. 842) and the triumph over all heresies.
  • orthoformic acid — a hypothetical acid, HC(OH) 3 , known only in the form of its esters.
  • outboard profile — an exterior side elevation of a vessel, showing all deck structures, rigging, fittings, etc.
  • overdramatically — In an overdramatic manner.
  • overhead railway — elevated railroad.
  • oxidation number — the state of an element or ion in a compound with regard to the electrons gained or lost by the element or ion in the reaction that formed the compound, expressed as a positive or negative number indicating the ionic charge of the element or ion.
  • padded shoulders — (on a garment) shoulders lined, stuffed, or filled out with soft material, esp in order to give them a higher or wider shape
  • paraformaldehyde — a white, crystalline polymer of formaldehyde, (HCOH) n , from which it is obtained by evaporation of the aqueous solution: used chiefly as an antiseptic.
  • parallelepipedon — a prism with six faces, all parallelograms.
  • partial ordering — a relation defined on a set, having the properties that each element is in relation to itself, the relation is transitive, and if two elements are in relation to each other, the two elements are equal.
  • parts of lindsey — an area in E England constituting a former administrative division of Lincolnshire
  • patched-together — makeshift; roughly made from disparate elements
  • pays de la loire — a region of W France, on the Bay of Biscay: generally low-lying, drained by the River Loire and its tributaries; agricultural
  • pearls of wisdom — good advice, wise words
  • perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
  • performance bond — contract bond.
  • periodic decimal — repeating decimal.
  • periodic tenancy — the letting of a dwelling for a repeated short term, as by the week, month, or quarter, with no end date
  • personal details — details about a person such as their name and address
  • pharmacodynamics — the branch of pharmacology dealing with the course of action, effect, and breakdown of drugs within the body.
  • phonocardiograph — an instrument for graphically recording the sound of the heartbeat.
  • phosphorous acid — a colorless, crystalline, water-soluble acid of phosphorus, H 3 PO 3 , from which phosphites are derived.
  • phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
  • picture postcard — postcard (def 1).
  • pinot chardonnay — Chardonnay.
  • pithecanthropoid — of, relating to, or resembling the former genus Pithecanthropus or one of its members.
  • play one's cards — to carry out one's plans; take action (esp in the phrase play one's cards right)
  • pocket billiards — pool2 (def 1).
  • polar coordinate — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
  • polyacrylic acid — a polymer of acrylic acid used as a sizing agent in the manufacture of nylon and other synthetic textiles.
  • polyhedral angle — a configuration consisting of the lateral faces of a polyhedron around one of its vertices. The portion of a pyramid including one of its points is such a configuration.
  • ponderosa (pine) — a yellow pine (Pinus ponderosa) of W North America, valued for its timber
  • portmanteau word — a case or bag to carry clothing in while traveling, especially a leather trunk or suitcase that opens into two halves.
  • portuguese india — a former Portuguese overseas territory on the W coast of India, consisting of the districts of Gôa, Daman, and Diu: annexed by India December 1961. Capital: Gôa.
  • posigrade rocket — an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight.
  • praetorian guard — the bodyguard of a military commander, especially the imperial guard stationed in Rome.
  • predetermination — to settle or decide in advance: He had predetermined his answer to the offer.
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