12-letter words containing s, t, r, i, p
- protistology — the biology of the Protista.
- protohistory — a branch of study concerned with the transition period between prehistory and the earliest recorded history.
- 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.
- protosemitic — the hypothetical parent language of the Semitic group of languages
- proximities' — nearness in place, time, order, occurrence, or relation.
- psi particle — any of a family of mesons consisting of a charmed quark and a charmed antiquark.
- psychiatrist — a physician who practices psychiatry.
- psychometric — Psychology. psychometrics.
- psychotronic — of or relating to a genre of usually low-budget movies that includes horror, fantasy, science-fiction, and underground films.
- psychotropic — affecting mental activity, behavior, or perception, as a mood-altering drug.
- pteridosperm — seed fern.
- pterosaurian — a pterosaur
- pull strings — a slender cord or thick thread used for binding or tying; line.
- pyonephritis — suppurative inflammation of the kidney.
- pyritiferous — having or producing pyrites
- pyrognostics — the characteristics of a mineral, such as fusibility and flame coloration, that are revealed by the application of heat
- pyrotechnics — the art of making fireworks.
- pyrotechnist — a person skilled in pyrotechnics, especially in the manufacture or use of fireworks.
- 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.
- re-deposited — to place for safekeeping or in trust, especially in a bank account: He deposited his paycheck every Friday.
- reabsorption — resorption (def 2).
- reassumption — the act or process of reassuming something
- receptionism — the doctrine that in the communion service the communicant receives the body and blood of Christ but that the bread and wine are not transubstantiated.
- receptionist — a person employed to receive and assist callers, clients, etc., as in an office.
- reciprocates — to give, feel, etc., in return.
- redemptorist — a member of the “Congregation of the Most Holy Redeemer,” founded by St. Alphonsus Liguori in 1732.
- reinspection — the act or process of reinspecting
- relationship — a connection, association, or involvement.
- repositorium — a place for the storage of valuables, as in an ancient Roman temple or a church.
- representing — to serve to express, designate, stand for, or denote, as a word, symbol, or the like does; symbolize: In this painting the cat represents evil and the bird, good.
- repristinate — to restore to the first or original state or condition.
- residentship — a person who resides in a place.
- respectively — in precisely the order given; sequentially.
- respirometer — an instrument for measuring the extent of respiratory movement.
- respirometry — the branch of medical science dealing with the measurement and analysis of respiration.
- respite care — Respite care is short-term care that is provided for very old or very sick people so that the person who usually cares for them can have a break.
- respondentia — a loan upon a ship's cargo, which is repaid with interest if the ship reaches its destination, and if the ship does not, the loan is not repaid
- responsivity — the quality or state of being responsive.
- resupination — a resupinate condition.
- retainership — the condition of being a retainer or of having retainers.
- retropulsion — an abnormal tendency to walk backwards: a symptom of Parkinson's disease
- retropulsive — of or relating to retropulsion
- ribbon strip — ribbon (def 8).
- risk capital — venture capital.
- rostropovich — Mstislav (Leopoldovich) [mis-tuh-slahv lee-uh-pohl-duh-vich;; Russian mstyi-slahf lyi-uh-pawl-duh-vyich] /ˈmɪs təˌslɑv ˌli əˈpoʊl də vɪtʃ;; Russian mstyɪˈslɑf lyɪ əˈpɔl də vyɪtʃ/ (Show IPA), 1927–2007, Soviet cellist and conductor (husband of Galina Vishnevskaya).
- rumble strip — one of a series of rough or slightly raised strips of pavement on a highway, intended to slow down the speed of vehicles, as before a toll booth.
- rustproofing — the process of making metal rustproof.