13-letter words containing a, l, e, o, p, r
- openheartedly — Alt form open-heartedly.
- opera glasses — small binoculars
- operationally — able to function or be used; functional: How soon will the new factory be operational?
- optical drive — optical disk drive
- optical fiber — optical fibre
- optical fibre — (communications) (fibre optics, FO, US "fiber", light pipe) A plastic or glass (silicon dioxide) fibre no thicker than a human hair used to transmit information using infra-red or even visible light as the carrier (usually a laser). The light beam is an electromagnetic signal with a frequency in the range of 10^14 to 10^15 Hertz. Optical fibre is less susceptible to external noise than other transmission media, and is cheaper to make than copper wire, but it is much more difficult to connect. Optical fibres are difficult to tamper with (to monitor or inject data in the middle of a connection), making them appropriate for secure communications. The light beams do not escape from the medium because the material used provides total internal reflection. See also FDDI, Optical Carrier n, SONET.
- oropharyngeal — the part of the pharynx between the soft palate and the upper edge of the epiglottis.
- orthocephalic — having a medium or intermediate relation between the height of the skull and the breadth or length.
- orthoepically — In terms of correct pronunciation.
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- over-planning — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.
- over-populate — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- overamplified — amplified too much, causing distortion or discomfort, etc
- overappraisal — An appraisal that overvalues something.
- overland park — a town in E Kansas, near Kansas City.
- overpedalling — the overuse of the piano's pedals
- overpopulated — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- overpotential — overvoltage.
- overspeculate — to engage in thought or reflection; meditate (often followed by on, upon, or a clause).
- palaeocrystic — consisting of former glacial formation
- palaeocurrent — an ancient current, esp of water, evidence of which has been preserved in sedimentary rocks as fossilized ripple marks, etc
- paleosiberian — a group of languages comprising those languages of Siberia that are not affiliated with Indo-European, Altaic, Uralic, or Eskimo-Aleut and including the Chukotian family and the unrelated language isolates Ket, Nivkh, and Yukaghir; Paleo-Asiatic.
- paleotropical — belonging or pertaining to a geographical division comprising the Ethiopian and Oriental regions.
- pallet loader — A device employing a vertical lift platform for the mechanical loading or unloading of pallets of freight
- pandora shell — any marine bivalve of the genus Pandora, having a scimitar-shaped shell with a pronounced ridge along the hinge.
- paradise lost — an epic poem (1667) by John Milton.
- paralipomenon — Chronicles.
- parallel port — (hardware) An interface from a computer system where data is transferred in or out in parallel, that is, on more than one wire. A parallel port carries one bit on each wire thus multiplying the transfer rate obtainable over a single wire. There will usually be some control signals on the port as well to say when data is ready to be sent or received. The commonest kind of parallel port is a printer port, e.g. a Centronics port which transfers eight bits at a time. Disks are also connected via special parallel ports, e.g. SCSI or IDE.
- parallelogram — a quadrilateral having both pairs of opposite sides parallel to each other.
- parencephalon — a cerebral hemisphere
- parental home — a school for problem children.
- parietal bone — either of a pair of membrane bones forming, by their union at the sagittal suture, part of the sides and top of the skull.
- parietal lobe — the middle part of each cerebral hemisphere behind the central sulcus.
- parker bowles — Camilla (née Shand). born 1947, became the second wife of Prince Charles in 2005; created Duchess of Cornwall and Duchess of Rothesay
- parnell shout — a social occasion where each person in a group pays for his or her own entertainment or meal
- parquet floor — flooring made of inlaid wood
- parsons table — a square or rectangular table, often of lightweight material, with straight legs that are square in cross section and of the same thickness as the top extending from the corners flush with the top so as to appear jointless.
- parti-colored — having different colors in different areas or patches; variegated: a parti-colored dress.
- particleboard — a boardlike building material made by compressing sawdust or wood particles with a resin binder
- partitionable — a division into or distribution in portions or shares.
- party-colored — having different colors in different areas or patches; variegated: a parti-colored dress.
- passionflower — any chiefly American climbing vine or shrub of the genus Passiflora, having showy flowers and a pulpy berry or fruit that in some species is edible.
- pastel orange — suntan (def 3).
- pastoral care — help with personal needs and problems given by a teacher
- patent holder — a person or company that holds a patent
- patripotestal — Anthropology. of or relating to the authority exercised by a father or a father's blood relatives.
- patrol leader — the leader of a division of a troop of Scouts or Guides
- pearl molding — a molding having the form of a row of pearls.
- pearl tapioca — a food substance prepared from cassava in granular, flake, pellet (pearl tapioca) or flour form, used in puddings, as a thickener, etc.
- pencil crayon — coloured pencil