13-letter words containing p, r, e, a, l
- multispectral — (of an airborne camera or scanner) capable of sensing and recording radiation from invisible as well as visible parts of the electromagnetic spectrum.
- multitemporal — (music) Having multiple tempos.
- nail clippers — tool for cutting finger- and toenails
- nanoparticles — Plural form of nanoparticle.
- natural slope — the maximum angle at which soil will lie in a bank without slipping
- ne plus ultra — the highest point; acme.
- necrophiliacs — Plural form of necrophiliac.
- nephrological — of or relating to nephrology
- neuroatypical — Having an atypical neurological configuration.
- non-corporeal — of the nature of the physical body; bodily.
- non-empirical — derived from or guided by experience or experiment.
- non-ephemeral — lasting a very short time; short-lived; transitory: the ephemeral joys of childhood.
- non-repayable — to pay back or refund, as money.
- non-reputable — held in good repute; honorable; respectable; estimable: a reputable organization.
- non-spherical — having the form of a sphere; globular.
- noncomparable — not comparable
- nonperiodical — a magazine or other journal that is issued at regularly recurring intervals.
- nonperishable — not subject to rapid deterioration or decay: A supply of nonperishable food was kept for emergencies.
- nonprofitable — Not profitable; not making profit.
- nonreciprocal — given or felt by each toward the other; mutual: reciprocal respect.
- normally-open — Normally-open switch contacts are in an open state at rest.
- normocephalic — Having a normal sized head; neither macrocephalic nor microcephalic; mesocephalic.
- nuclear power — power derived from nuclear energy.
- old provencal — the Provençal language as found in documents from the 11th to the 16th centuries. Abbreviation: OPr.
- omnicorporeal — Comprehending or including all bodies; embracing all substance.
- open interval — (mathematics) A type of interval (range of numbers) that does not include either of its endpoints. For example, when mixing red and blue paint, the proportion of red lies in the interval 0% to 100% but can't be exactly 0% or 100% or it wouldn't be a mixture.
- open learning — a system of further education on a flexible part-time basis
- 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).
- painterliness — the quality of being painterly
- 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.