10-letter words starting with per
- perihelion — the point in the orbit of a planet or comet at which it is nearest to the sun.
- perikaryal — of or pertaining to the perikaryon of a nerve; involving or occurring within a perikaryon
- perikaryon — cell body.
- perilously — involving or full of grave risk or peril; hazardous; dangerous: a perilous voyage across the Atlantic in a small boat.
- perimetral — the border or outer boundary of a two-dimensional figure.
- perimetric — the border or outer boundary of a two-dimensional figure.
- perimysium — the connective tissue surrounding bundles of skeletal muscle fibers.
- perineural — located around a nerve or bunch of nerves; surrounding a nerve
- periodical — a magazine or other journal that is issued at regularly recurring intervals.
- periosteum — the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
- peripeteia — a sudden turn of events or an unexpected reversal, especially in a literary work.
- peripheral — pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
- peripheric — peripheral (defs 1–3).
- periphonic — (of sound reproduction) involving speakers placed at different heights so as to produce sound from all directions
- periphrase — the use of an unnecessarily long or roundabout form of expression; circumlocution.
- periphytic — the community of tiny organisms, as protozoans, hydras, insect larvae, and snails, that lives on the surfaces of rooted aquatic plants.
- periphyton — the community of tiny organisms, as protozoans, hydras, insect larvae, and snails, that lives on the surfaces of rooted aquatic plants.
- peripteral — (of a classical temple or other structure) surrounded by a single row of columns.
- periscopic — Optics. (of certain lenses in special microscopes, cameras, etc.) giving distinct vision obliquely, or all around, as well as, or instead of, in a direct line.
- perishable — subject to decay, ruin, or destruction: perishable fruits and vegetables.
- perishment — to die or be destroyed through violence, privation, etc.: to perish in an earthquake.
- peritectic — of or noting the phase intermediate between a solid and the liquid that results from the melting of the solid.
- perithecia — the fruiting body of ascomycetous fungi, typically a minute, more or less completely closed, globose or flask-shaped body enclosing the asci.
- peritoneal — the serous membrane lining the abdominal cavity and investing its viscera.
- peritoneum — the serous membrane lining the abdominal cavity and investing its viscera.
- peritricha — ciliate protozoans, of the order Peritrichida, in which the cilia are restricted to a spiral around the mouth
- periwigged — wearing a periwig; by extension, excessively adorned
- periwinkle — Also called myrtle. a trailing plant, Vinca minor, of the dogbane family, having glossy, evergreen foliage and usually blue-violet flowers.
- perjurious — the willful giving of false testimony under oath or affirmation, before a competent tribunal, upon a point material to a legal inquiry.
- perl-byacc — A modified version of byacc that generates a parser in Perl code, by Rick Ohnemus <[email protected]>. It has a "-p" switch so multiple parsers can be used in one program (C or Perl). Version 1.8.2 should work on most Unix systems. It also works with SAS/C 6.x on Amiga.
- perlucidus — (of a cloud) having transparent spaces between the elements.
- permadeath — (in a game, often a video game) the permanent death of a defeated character, after which the player of the game cannot continue with the same character.
- permafrost — (in arctic or subarctic regions) perennially frozen subsoil.
- permanence — the condition or quality of being permanent; perpetual or continued existence.
- permanency — permanence.
- permeation — to pass into or through every part of: Bright sunshine permeated the room.
- permeative — to pass into or through every part of: Bright sunshine permeated the room.
- permethrin — a synthetic chemical compound with formula C21H20Cl2O3, effective as an insecticide and against various parasites
- permillage — a rate or proportion per thousand. Compare percentage (def 1).
- permission — authorization granted to do something; formal consent: to ask permission to leave the room.
- permissive — habitually or characteristically accepting or tolerant of something, as social behavior or linguistic usage, that others might disapprove or forbid.
- permitting — to allow to do something: Permit me to explain.
- permutable — to alter; change.
- pernambuco — a state in NE Brazil. 38,000 sq. mi. (98,420 sq. km). Capital: Recife.
- pernicious — causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.
- pernickety — persnickety.
- pernoctate — to stay all night
- peroration — a long speech characterized by lofty and often pompous language.
- perovskite — a naturally occurring titanate of calcium, CaTiO 3 , found as yellow, brown, or black cubic crystals, usually in metamorphic rocks.
- peroxidase — any of a class of oxidoreductase enzymes that catalyze the oxidation of a compound by the decomposition of hydrogen peroxide or an organic peroxide.