9-letter words starting with per
- peridotic — of, relating to, or containing peridot
- peridrome — (in Classical architecture) a colonnaded walkway running round a building, esp around a Classical temple
- périgueux — a river in SW France, flowing W to the Gironde estuary. 300 miles (485 km) long.
- perihelia — the point in the orbit of a planet or comet at which it is nearest to the sun.
- perikarya — parts of nerve cells that contain the nuclei
- perilless — exposure to injury, loss, or destruction; grave risk; jeopardy; danger: They faced the peril of falling rocks.
- perilymph — the fluid between the bony and membranous labyrinths of the ear.
- perimeter — the border or outer boundary of a two-dimensional figure.
- perimetry — the border or outer boundary of a two-dimensional figure.
- perimorph — a crystal of one mineral enclosing that of another mineral. Compare endomorph (def 1).
- perinatal — occurring during or pertaining to the phase surrounding the time of birth, from the twentieth week of gestation to the twenty-eighth day of newborn life.
- periodate — a salt of a periodic acid, as sodium periodate, Na 2 H 3 IO 6 .
- periodide — an iodide with the maximum proportion of iodine.
- periodize — to divide (a portion of time) into periods
- peripatus — any of a genus of wormlike arthropods having a segmented body and short unjointed limbs: belonging to the phylum Onychophora
- periphery — the external boundary of any surface or area.
- periplasm — an outer cytoplasmic layer that surrounds the oosphere in certain fungi.
- periplast — the hard and plated cell wall of a single-celled organism
- periproct — (in certain echinoids) that part of the body surface bordering the anus.
- periptery — a peripteral building.
- periscian — a person whose shadow moves round every point of the compass during a day, i.e. a person located in the polar regions
- periscope — an optical instrument for viewing objects that are above the level of direct sight or in an otherwise obstructed field of vision, consisting essentially of a tube with an arrangement of prisms or mirrors and, usually, lenses: used especially in submarines.
- perishing — causing destruction, ruin, extreme discomfort, or death: lost in the perishing cold.
- perisperm — the nutritive tissue surrounding the embryo in certain seeds, and developing from the nucellus of the ovule
- perispore — a membrane surrounding a spore.
- peristeri — a city in SE Greece, constituting part of Greater Athens.
- peristome — Botany. the one or two circles of small, pointed, toothlike appendages around the orifice of a capsule or urn of mosses, appearing when the lid is removed.
- peristyle — a colonnade surrounding a building or an open space.
- perkiness — jaunty; cheerful; brisk; pert.
- perma-tan — a permanent year-round suntan
- permabear — an investor who consistently acts in the expectation that the value of stocks and shares will fall
- permabull — an investor who consistently acts in the expectation that the value of stocks and shares will rise
- permalink — a permanent URL that links to a specific web page, typically a single blog entry or news article.
- permalloy — any of various alloys containing iron and nickel (45–80 per cent) and sometimes smaller amounts of chromium and molybdenum
- permanent — existing perpetually; everlasting, especially without significant change.
- permatemp — a temporary or freelance worker who accepts a series of short-term assignments, thereby continuing on a long-term basis without the benefits of a permanent employee.
- permeable — capable of being permeated.
- permeance — the act of permeating.
- permeated — to pass into or through every part of: Bright sunshine permeated the room.
- permeator — to pass into or through every part of: Bright sunshine permeated the room.
- permit me — You can use permit me when you are about to say something or to make a suggestion.
- permitted — to allow to do something: Permit me to explain.
- permittee — to allow to do something: Permit me to explain.
- permitter — to allow to do something: Permit me to explain.
- permutate — to cause (something) to undergo permutation.
- peronista — Peronist.
- perorally — through or via the mouth
- perorator — a person who gives a peroration
- perotinus — ("Magnus Magister") fl. late 12th to early 13th century, French composer.
- perovskia — a member of the Perovskia genus of aromatic plant native to central Asia, esp Russian sage, Perovskia atriplicifolia