12-letter words containing p, i, t, o, s, r
- optoisolator — A device that transmits a signal optically between two isolated electronic circuits.
- optometrists — Plural form of optometrist.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- ornithopters — Plural form of ornithopter.
- ornithoscopy — divination from the observation of birds
- orthopaedics — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- orthopaedist — Alternative spelling of orthopedist.
- orthopterist — someone who studies the Orthoptera
- orthotropism — Botany. orthotropic tendency or growth.
- osteoporosis — a disorder in which the bones become increasingly porous, brittle, and subject to fracture, owing to loss of calcium and other mineral components, sometimes resulting in pain, decreased height, and skeletal deformities: common in older persons, primarily postmenopausal women, but also associated with long-term steroid therapy and certain endocrine disorders.
- osteoporotic — of, relating to, or caused by osteoporosis.
- outcroppings — Plural form of outcropping.
- outspreading — Present participle of outspread.
- outstripping — to outdo; surpass; excel.
- overoptimism — a disposition or tendency to look on the more favorable side of events or conditions and to expect the most favorable outcome.
- overoptimist — someone who is too optimistic
- overshipment — an act or instance of shipping freight or cargo.
- palindromist — a word, line, verse, number, sentence, etc., reading the same backward as forward, as Madam, I'm Adam or Poor Dan is in a droop.
- pantisocracy — a community, social group, etc, in which all have rule and everyone is equal
- parasitology — the branch of biology dealing with parasites and the effects of parasitism.
- parochialist — a parochial character, spirit, or tendency; excessive narrowness of interests or view; provincialism.
- paronomastic — the use of a word in different senses or the use of words similar in sound to achieve a specific effect, as humor or a dual meaning; punning.
- parting shot — a threat, insult, condemnation, sarcastic retort, or the like, uttered upon leaving.
- pas de trois — a dance for three dancers.
- passionfruit — any edible fruit of a passionflower, as the maypop.
- patroclinous — inheritance in which the traits of the offspring are derived primarily from the paternal parent (opposed to matrocliny).
- patron saint — a saint regarded as the special guardian of a person, group, trade, country, etc.
- perforations — the holes punched that allow individual stamps, coupons, etc to be easily separated
- perfusionist — a medical technician or nurse who monitors and operates equipment that oxygenates the blood, as during open-heart surgery
- period costs — Period costs are general costs that cannot be associated with a particular product, such as utilities or insurance.
- periodontics — the branch of dentistry dealing with the study and treatment of diseases of the periodontium.
- periodontist — a specialist in periodontics.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- peristeronic — of, pertaining to, or resembling pigeons
- peristomatic — surrounding a leaf's stoma or stomata
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- perquisition — an intensive and meticulous examination, pursuit, or hunt for something
- persian knot — a hand-tied knot, used in rug weaving, in which the ends of yarn looped around a warp thread appear at each of the interstices between adjacent threads and produce a compact and relatively even pile effect.
- perspiration — a salty, watery fluid secreted by the sweat glands of the skin, especially when very warm as a result of strenuous exertion; sweat.
- perspiratory — of, relating to, or stimulating perspiration.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- petaliferous — bearing or having petals.
- petrobrusian — a member of a 12th-century sect in S France that rejected the Mass, infant baptism, prayers for the dead, sacerdotalism, the veneration of the cross, and the building of churches.
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- petrogenesis — the branch of petrology dealing with the origin and formation of rocks.
- petrophysics — the analysis of the constitution and characteristics of rocks
- phenocrystic — relating to a phenocryst
- phosphaturia — the presence of an excessive quantity of phosphates in the urine.
- photorealism — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- phototropism — phototropic tendency or growth.