15-letter words containing m, e, r, y, s
- minidisc player — a device for playing minidiscs
- mirror symmetry — symmetry about a plane (mirror plane) that divides the object or system into two mutual mirror images
- modestly priced — moderately priced; not overly expensive
- monkey, scratch — scratch monkey
- montgomeryshire — a historic county in Powys, in central Wales.
- more's the pity — If you add more's the pity to a comment, you are expressing your disappointment or regret about something.
- morelos y pavon — José María [haw-se mah-ree-ah] /hɔˈsɛ mɑˈri ɑ/ (Show IPA), 1765–1815, Mexican priest and revolutionary leader.
- moreton bay ash — an Australian eucalyptus tree, E. tessellaris, having drooping branches and grey bark
- morning prayers — early-morning act of religious worship
- mystery shopper — a person who is employed, often by the owners, to visit shops, hotels, etc, incognito, and assess the quality of the service offered
- noncompensatory — serving to compensate, as for loss, lack, or injury.
- normally-closed — Normally-closed switch contacts are in a closed state at rest.
- nyquist theorem — (communications) A theorem stating that when an analogue waveform is digitised, only the frequencies in the waveform below half the sampling frequency will be recorded. In order to reconstruct (interpolate) a signal from a sequence of samples, sufficient samples must be recorded to capture the peaks and troughs of the original waveform. If a waveform is sampled at less than twice its frequency the reconstructed waveform will effectively contribute only noise. This phenomenon is called "aliasing" (the high frequencies are "under an alias"). This is why the best digital audio is sampled at 44,000 Hz - twice the average upper limit of human hearing. The Nyquist Theorem is not specific to digitised signals (represented by discrete amplitude levels) but applies to any sampled signal (represented by discrete time values), not just sound.
- orangeman's day — the 12th of July, celebrated by Protestants in Northern Ireland to commemorate the anniversary of the Battle of the Boyne (1690)
- orangemen'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.
- ordinary seaman — a seaman insufficiently skilled to be classified as an able-bodied seaman. Abbreviation: O.D., O.S., o.s.
- oscars ceremony — a formal annual event in the United States in which small gold statuettes are awarded by the Academy of Motion Picture Arts and Sciences for outstanding achievements in films
- oyster mushroom — oyster cap.
- parasympathetic — pertaining to that part of the autonomic nervous system consisting of nerves and ganglia that arise from the cranial and sacral regions and function in opposition to the sympathetic system, as in inhibiting heartbeat or contracting the pupil of the eye.
- periodic system — a system of classification of the elements based on the periodic law.
- physical memory — (memory management) The memory hardware (normally RAM) installed in a computer. The term is only used in contrast to virtual memory.
- plethysmography — the tracking of changes measured in bodily volume
- presbyterianism — church government by presbyters or elders, equal in rank and organized into graded administrative courts.
- primary insurer — A primary insurer is the insurance company that first sells insurance to a client, who later purchases reinsurance.
- primary process — the generally unorganized mental activity characteristic of the unconscious and occurring in dreams, fantasies, and related processes.
- primary sealing — Primary sealing is devices used for sealing tanks, to reduce emissions, often made of foam.
- primary storage — main memory
- primrose family — the plant family Primulaceae, characterized by herbaceous plants having simple, opposite, whorled, or basal leaves, flowers with a five-lobed corolla, and capsular fruit, and including cyclamen, loosestrife of the genus Lysimachia, pimpernel, primrose, and shooting star.
- primrose yellow — primrose (def 3).
- prismatic layer — the middle layer of the shell of certain mollusks, consisting chiefly of crystals of calcium carbonate.
- promissory note — a written promise to pay a specified sum of money to a designated person or to his or her order, or to the bearer of the note, at a fixed time or on demand.
- proxy statement — a statement containing information, frequently exhaustive, about a corporation, its officers, and any propositions to be voted on, sent to stockholders when their proxies are being solicited for an annual or a special stockholders' meeting.
- pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
- psychochemistry — the treatment of mental illnesses by drugs
- purslane family — the plant family Portulacaceae, characterized by chiefly herbaceous plants having simple, often fleshy leaves, sometimes showy flowers, and capsular fruit, and including bitterroot, purslane, red maids, rose moss, and spring beauty.
- pyramid selling — Pyramid selling is a method of selling in which one person buys a supply of a particular product direct from the manufacturer and then sells it to a number of other people at an increased price. These people sell it on to others in a similar way, but eventually the final buyers are only able to sell the product for less than they paid for it.
- pyrimidine base — any of a number of similar compounds having a basic structure that is derived from pyrimidine, including cytosine, thymine, and uracil, which are constituents of nucleic acids
- radial symmetry — a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish.
- remonstratingly — in an remonstrating or dissenting manner
- remonstratively — in a remonstrative or expostulatory manner
- reserved memory — (storage) The address range 640-1024 kilobytes on an IBM PC, reserved for BIOS, video cards, and add-on cards. Depending on the configuration some of the address space may be unused in which case it can be used by EMS or UMB.
- reye's syndrome — an uncommon, severe disorder occurring primarily in children after a viral illness, as influenza or chickenpox, and associated with aspirin usage, involving swelling of the brain and liver and affecting other organs: symptoms include fever, projectile vomiting, confusion, and, sometimes, respiratory arrest.
- reynolds number — a dimensionless number, vρl/η, where v is the fluid velocity, ρ the density, η the viscosity and l a dimension of the system. The value of the number indicates the type of fluid flow
- rhyme or reason — If something happens or is done without rhyme or reason, there seems to be no logical reason for it to happen or be done.
- rockrose family — the plant family Cistaceae, characterized by herbaceous plants and shrubs having simple, usually opposite leaves, solitary or clustered flowers, and capsular fruit, and including the frostweed, pinweed, and rockrose.
- run-time system — (programming) (RTS, run-time support, run-time) Library code and processes which support software written in a particular language running on a particular platform. The RTS typically deals with details of the interface between the program and the operating system such as system calls, program start-up and termination, and memory management.
- saccharomycetes — a collective name for yeasts
- salem secretary — a tall cabinet having a recessed upper part fitted with drawers and shelves and a lower part with doors and a section falling or pulling out to serve as a writing surface.
- sarcenchymatous — relating to the connective tissue of some sponges
- secondary metal — metal derived wholly or in part from scrap.