12-letter words containing t, i, p, s, a
- postvaccinal — occurring after a vaccine
- potamologist — a specialist in potamology
- potato crisp — potato chip.
- power assist — a procedure for supplementing or replacing the manual effort needed to operate a device or system, often by hydraulic, electrical, or mechanical means.
- practicalism — devotion to practical matters.
- practicalist — devotion to practical matters.
- pragmaticism — the pragmatist philosophy of C. S. Peirce, chiefly a theory of meaning: so called by him to distinguish it from the pragmatism of William James.
- pragmaticist — a follower of the doctrine of pragmatism
- praiseworthy — deserving of praise; laudable: a praiseworthy motive.
- pratincolous — living in a meadow.
- pre-disaster — a calamitous event, especially one occurring suddenly and causing great loss of life, damage, or hardship, as a flood, airplane crash, or business failure.
- pre-estimate — to form an approximate judgment or opinion regarding the worth, amount, size, weight, etc., of; calculate approximately: to estimate the cost of a college education.
- pre-socratic — of or relating to the philosophers or philosophical systems of the period before the Socratic period.
- predesignate — to designate beforehand.
- predestinate — Theology. to foreordain by divine decree or purpose.
- preestablish — to establish beforehand.
- pregustation — the act of tasting beforehand
- prehistorian — an authority on or specialist in prehistory
- preparations — measures done in order to prepare for something; provisions
- presbyterial — of or relating to a presbytery.
- presbyterian — pertaining to or based on the principle of ecclesiastical government by presbyters or presbyteries.
- presentation — an act of presenting.
- presentative — (of an image, idea, etc.) presented, known, or capable of being known directly.
- presentially — in a presential way
- preservation — to keep alive or in existence; make lasting: to preserve our liberties as free citizens.
- preservative — something that preserves or tends to preserve.
- presidential — of or relating to a president or presidency.
- prestigiator — someone who practises sorcery or prestidigitation
- problematics — problems or difficulties in a particular situation or subject
- proboscidate — having a proboscis.
- promuscidate — shaped like a proboscis
- propagandist — a person involved in producing or spreading propaganda.
- prosectorial — characteristic of a prosector
- prostacyclin — a prostaglandin, C 2 0 H 3 2 O 5 , that specifically inhibits the formation of blood clots.
- protestation — the act of protesting or affirming.
- protoplasmic — Biology. (no longer in technical use) the colloidal and liquid substance of which cells are formed, excluding horny, chitinous, and other structural material; the cytoplasm and nucleus.
- psammophytic — relating to psammophytes
- psi particle — any of a family of mesons consisting of a charmed quark and a charmed antiquark.
- psittacinite — mottramite.
- psychiatrist — a physician who practices psychiatry.
- psychoactive — of or relating to a substance having a profound or significant effect on mental processes: a psychoactive drug.
- psychopathic — of, relating to, or affected with psychopathy.
- pterosaurian — a pterosaur
- ptyalectasis — spontaneous or surgical dilatation of a salivary duct.
- quarterpipes — Plural form of quarterpipe.
- radioisotope — a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
- radiophonist — a person who produces radiophonic music
- ramapithecus — a genus of extinct Miocene ape known from fossils found in India and Pakistan and formerly thought to be a possible human ancestor.
- reabsorption — resorption (def 2).
- reassumption — the act or process of reassuming something