13-letter words containing t, y, s, i
- overstability — the state of being excessively stable
- painstakingly — taking or characterized by taking pains or trouble; expending or showing diligent care and effort; careful: a painstaking craftsman; painstaking research.
- palaeocrystic — consisting of former glacial formation
- parasexuality — parasexual behaviour
- parasitically — of, relating to, or characteristic of parasites.
- parasynthesis — the formation of a word by the addition of a derivational suffix to a phrase or compound, as of greathearted, which is great heart plus -ed.
- parasynthetic — the formation of a word by the addition of a derivational suffix to a phrase or compound, as of greathearted, which is great heart plus -ed.
- parsley piert — a small N temperate rosaceous plant, Aphanes arvensis, having fan-shaped leaves and small greenish flowers
- patriot's day — the third Monday in April, a legal holiday in Me. and Mass. commemorating the battles of Lexington and Concord (April 19, 1775)
- patriots' day — the anniversary of the battles of Lexington and Concord (1775), celebrated the third Monday in April: a legal holiday in Massachusetts and Maine.
- pearly whites — white and lustrous as a pearl.
- pedal cyclist — a person who rides a pedal cycle, as opposed to a motorcycle
- peirastically — in a peirastic manner
- peninsularity — the state or fact of being a peninsula
- penny whistle — a type of flageolet with six finger holes, esp a cheap one made of metal
- pentasyllabic — a word or line of verse of five syllables.
- perishability — subject to decay, ruin, or destruction: perishable fruits and vegetables.
- perissodactyl — having an uneven number of toes or digits on each foot.
- perityphlitis — the inflammation of the tissue surrounding the caecum
- perspectively — a technique of depicting volumes and spatial relationships on a flat surface. Compare aerial perspective, linear perspective.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phantasmality — the condition or character of being incorporeal and illusory
- photodynamics — the science dealing with light and its effects on living organisms.
- physicalistic — of or relating to physicalism.
- physicalities — the physical attributes of a person, especially when overdeveloped or overemphasized.
- physiotherapy — physical therapy.
- physitheistic — of, relating to, or believing in physitheism
- physoclistous — having the air bladder closed off from the mouth.
- physostigmine — an alkaloid, C 1 5 H 2 1 N 3 O 2 , used in the treatment of Alzheimer's disease to raise the level of the neurotransmitter acetylcholine and also as a miotic in glaucoma.
- phytocoenosis — the plants of a given area considered as a whole.
- phytosanitary — of or relating to the health of plants
- pianistically — in a manner or way that is pianistic
- picturesquely — visually charming or quaint, as if resembling or suitable for a painting: a picturesque fishing village.
- pietistically — in a pietistical manner
- plastic money — credit cards, used instead of cash
- plastic paddy — a person who, although not born in Ireland, is of Irish descent and places great importance on Irishness
- platykurtosis — the state of being platykurtic.
- play politics — the science or art of political government.
- pleurisy root — a North American milkweed, Asclepias tuberosa, whose root was used as a remedy for pleurisy.
- pneumatolysis — the process by which rocks are altered or minerals and ores are formed by the action of vapors given off by magma.
- points system — a system used to assess applicants' eligibility for local authority housing, based on (points awarded for) such factors as the length of time the applicant has lived in the area, how many children are in the family, etc
- poliomyelitis — an acute viral disease, usually affecting children and young adults, caused by any of three polioviruses, characterized by inflammation of the motor neurons of the brain stem and spinal cord, and resulting in a motor paralysis, followed by muscular atrophy and often permanent deformities.
- polyarteritis — inflammation of the layers of an artery or of many arteries, usually caused by a severe hypersensitivity reaction, and characterized by nodules and hemorrhage along the involved vessels.
- polyarthritis — arthritis occurring in more than one joint.
- polycistronic — of or relating to the transcription of two or more adjacent cistrons into a single messenger RNA molecule.
- polysynthetic — (of a language) characterized by a prevalence of relatively long words containing a large number of affixes to express syntactic relationships and meanings. Many American Indian languages are polysynthetic. Compare analytic (def 3), synthetic (def 3).
- post-tertiary — denoting or formed after the Tertiary period of geological time
- postcranially — affecting the postcranium
- postembryonic — occurring after the embryonic phase.
- prairie style — the style of the architects of the Prairie School.