13-letter words containing t, o, y, i, s
- no entry sign — a sign, esp a traffic sign, that prohibits entry into a place
- non-necessity — something necessary or indispensable: food, shelter, and other necessities of life.
- non-signatory — having signed, or joined in signing, a document: the signatory powers to a treaty.
- non-symbiotic — living in symbiosis, or having an interdependent relationship: Many people feel the relationship between humans and dogs is symbiotic.
- nondescriptly — in a nondescript manner
- nonhysterical — not hysterical or funny
- nonsensuality — The state or condition of being nonsensual.
- nonstationary — Not stationary.
- nonsystematic — Not systematic.
- nonuniversity — distinct from university, not university-based
- nostalgically — experiencing or exhibiting nostalgia, a sentimental or wistful yearning for the happiness felt in a former place, time, or situation.
- nudist colony — a place where group of nudists live together separated from the rest of the community
- numismatology — Numismatics.
- observability — capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude.
- obstetrically — (medicine) In terms of obstetrics.
- obstructively — In an obstructive manner.
- occasionality — the condition or character of being infrequent or intended for a specific occasion, or that which is infrequent or intended for a specific occasion
- omnipresently — In an omnipresent manner.
- onanistically — In an onanistic manner.
- onomastically — In an onomastic way.
- onychophagist — the practice of biting one's nails, especially when done habitually and as a symptom of emotional disturbance.
- open registry — ship registration under a national flag available to all ships regardless of nationality.
- opisthography — the practice of writing on the front and back of a parchment or papyrus
- oppositionary — the action of opposing, resisting, or combating.
- orgiastically — In an orgiastic fashion.
- ostensibility — The quality of being ostensible.
- osteomyelitis — an inflammation of the bone and bone marrow, usually caused by bacterial infection.
- osteophytosis — Lb medicine The presence of osteophytes.
- outstandingly — prominent; conspicuous; striking: an outstanding example of courage.
- overdiversity — excessive diversity
- overintensity — the state of being too intense
- overstability — the state of being excessively stable
- palaeocrystic — consisting of former glacial formation
- 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.
- perissodactyl — having an uneven number of toes or digits on each foot.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- photodynamics — the science dealing with light and its effects on living organisms.
- physiotherapy — physical therapy.
- 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
- plastic money — credit cards, used instead of cash
- 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.