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21-letter words containing p, e, o, l, s, c

  • keep count/lose count — If you keep count of a number of things, you note or keep a record of how many have occurred. If you lose count of a number of things, you cannot remember how many have occurred.
  • keep one's nose clean — the part of the face or facial region in humans and certain animals that contains the nostrils and the organs of smell and functions as the usual passageway for air in respiration: in humans it is a prominence in the center of the face formed of bone and cartilage, serving also to modify or modulate the voice.
  • least common multiple — lowest common multiple.
  • locally compact space — a topological space in which each point has a neighborhood that is compact.
  • magnetoplasmadynamics — magnetohydrodynamics.
  • main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
  • mechanical suspension — the act of suspending.
  • megaspore mother cell — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
  • metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
  • mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
  • national park service — a division of the Department of the Interior, created in 1916, that administers national parks, monuments, historic sites, and recreational areas.
  • nuclear power station — a station or plant where nuclear energy is converted into heat, electricity, etc
  • old spanish practices — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
  • open graphics library — (graphics, library)   (OpenGL) A multi-platform software interface to graphics hardware, supporting rendering and imaging operations. The OpenGL interface was developed by Silicon Graphics, who license it to other vendors. The OpenGL graphics interface consists of several hundred functions operating on 2D and 3D objects, supporting basic techniques, such as modelling and smooth shading, and advanced techniques, such as texture mapping and motion blur. Many operations require a frame buffer. OpenGL is network-transparent, and a common extension to the X Window System allows an OpenGL client to communicate across a network with a different vendor's OpenGL server. OpenGL is based on Silicon Graphics' proprietary IRIS GL.
  • operational semantics — (theory)   A set of rules specifying how the state of an actual or hypothetical computer changes while executing a program. The overall state is typically divided into a number of components, e.g. stack, heap, registers etc. Each rule specifies certain preconditions on the contents of some components and their new contents after the application of the rule. It is similar in spirit to the notion of a Turing machine, in which actions are precisely described in a mathematical way. Compuare axiomatic semantics, denotational semantics.
  • optical double (star) — double star (sense 2)
  • packed encoding rules — (protocol, standard)   (PER) ASN.1 encoding rules for producing a compact transfer syntax for data structures described in ASN.1, defined in 1994. PER provides a much more compact encoding then BER. It tries to represents the data units using the minimum number of bits. The compactness requires that the decoder knows the complete abstract syntax of the data structure to be decoded, however. Documents: ITU-T X.691, ISO 8825-2.
  • performance appraisal — the assessment, at regular intervals, of an employee's performance at work
  • peroxydisulfuric acid — persulfuric acid (def 2).
  • person-to-person call — a call to a specified person; if that person cannot take the call there is no charge
  • personalized medicine — an approach to the practice of medicine that uses information about a patient’s unique genetic makeup and environment to customize the patient's medical care to fit his or her individual requirements.
  • phenarsazine chloride — adamsite.
  • piero della francesca — Piero della [pee-air-oh del-uh;; Italian pye-raw del-lah] /piˈɛər oʊ ˈdɛl ə;; Italian ˈpyɛ rɔ ˈdɛl lɑ/ (Show IPA), (Piero dei Franceschi) c1420–92, Italian painter.
  • piezoelectric crystal — a crystal, such as quartz, that produces a potential difference across its opposite faces when under mechanical stress
  • place of safety order — (in Britain) under the Children and Young Persons Act 1969, an order granted by a justice to a person or agency granting authority to detain a child or young person and take him or her to a place of safety for not more than 28 days, because of the child's actual or likely ill-treatment or neglect, etc
  • play one's cards well — to use one's resources in the most effective manner
  • polarizing microscope — a microscope that utilizes polarized light to reveal detail in an object, used especially to study crystalline and fibrous structures.
  • political correctness — Political correctness is the attitude or policy of being extremely careful not to offend or upset any group of people in society who have a disadvantage, or who have been treated differently because of their sex, race, or disability.
  • portable common loops — (PCL) A language which started out as an implementation of CommonLoops and turned into a portable CLOS implementation. Version 1992-08-28. It runs under Lucid Common LISP 4.0.1 and CMU Common LISP 16e.
  • prefect of discipline — a senior master in a Jesuit school or college
  • processor direct slot — (hardware)   (PDS) Apple Computer's name for a local bus connection. Most Macintoshes have only one PDS connector. Different Apple computers have different PDS specifications.
  • professional services — (job)   A department of a supplier providing consultancy and programming manpower for the supplier's products.
  • projection television — a television picture display system consisting of a special receiver and an optical system that projects an enlarged picture on a screen.
  • pseudo-cleft sentence — cleft sentence (def 2).
  • psychological warfare — the use of propaganda, threats, and other psychological techniques to mislead, intimidate, demoralize, or otherwise influence the thinking or behavior of an opponent.
  • psychoneuroimmunology — the study of the effects of psychological factors on the immune system
  • pulse code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
  • pulse-code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
  • purple-fringed orchis — either of two North American orchids (Habenaria psycodes and H. fimbriata) with purple-fringed flowers
  • rap over the knuckles — to reprimand
  • reconnaissance patrol — a patrol made by soldiers in order to obtain military information about a particular place
  • roll with the punches — a thrusting blow, especially with the fist.
  • sales finance company — a finance company that purchases, at a discount, installment contracts from dealers or that finances retail sales.
  • scalar triple product — the volume of the parallelepiped defined by three given vectors, u, v, and w, usually represented as u·v 1 (v×w), [ uvw ], or (uvw), where × denotes a cross product and · denotes an inner product.
  • schlieren photography — a type of photography which records schlieren
  • school superintendent — an official whose job is to oversee school administration within a district
  • schoolgirl complexion — a smooth, clear complexion, such as schoolgirls are considered to have
  • scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • simple actor language — (language)   (SAL) A minimal actor language, used for teaching in:
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