15-letter words containing t, a, p, r
- palato-alveolar — articulated with the blade or tip of the tongue approaching or touching the alveolar ridge and the main body of the tongue near the hard palate; having a primary alveolar articulation and a secondary palatal articulation.
- palliative-care — medical care focused on improving the quality of life of patients with serious illnesses, as by treating symptoms and providing emotional support.
- pamprodactylous — having all four toes directed forward, as in swifts and colies.
- pandorae fretum — an area in the southern hemisphere of Mars.
- panoramic sight — an artillery sight that can be rotated horizontally in a full circle.
- pantopragmatics — universal intervention in the affairs of others
- paracetaldehyde — paraldehyde.
- parachute brake — a parachute opened horizontally from the tail of an airplane upon landing, used as an aid in braking. Also called parabrake. Compare drogue parachute (def 2).
- paraffin heater — a heater which is fuelled by paraffin
- paraheliotropic — (of leaves) turning away from light; sun-avoiding
- paralation lisp — Embeds the paralation model in Common LISP. Available from MIT Press, (800)356-0343.
- paralinguistics — the study of paralanguage.
- parallel motion — a mechanism arranged so as to impart rectilinear motion to a rod connected to a lever that moves through an arc.
- parametrization — a parametric representation; the act of representing as or defining parameters
- parasiticalness — the condition or characteristic of being parasitic
- parasympathetic — pertaining to that part of the autonomic nervous system consisting of nerves and ganglia that arise from the cranial and sacral regions and function in opposition to the sympathetic system, as in inhibiting heartbeat or contracting the pupil of the eye.
- parchment paper — a waterproof and grease-resistant paper produced by treating ordinary paper with concentrated sulfuric acid.
- parent compound — a compound from which derivatives may be obtained.
- parent language — an earlier language from which another is derived.
- parenthetically — of, pertaining to, noting, or of the nature of a parenthesis: several unnecessary parenthetic remarks.
- parish register — the register of the christenings, marriages, and burials in a parish.
- parliamentarian — a person who is expert in the formal rules and procedures of deliberative assemblies and other formal organizations.
- parliamentarily — in a parliamentary manner
- pars intermedia — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
- part and parcel — a portion or division of a whole that is separate or distinct; piece, fragment, fraction, or section; constituent: the rear part of the house; to glue the two parts together.
- part of fortune — the celestial longitude of the moon plus the celestial longitude of the ascendant minus the celestial longitude of the sun: said to connote an area of life through which one achieves emotional satisfaction.
- parthenogenesis — development of an egg without fertilization.
- parthenogenetic — development of an egg without fertilization.
- parti québécois — (in Canada) a political party in Quebec, formed in 1968 and originally advocating the separation of Quebec from the rest of the country
- partial denture — an artificial replacement of one or several of the teeth (partial denture) or all of the teeth (full denture) of either or both jaws; dental prosthesis.
- partial eclipse — astronomy
- partial product — the result obtained when a number is multiplied by one digit of a multiplier
- participational — involving participation
- participatively — to take or have a part or share, as with others; partake; share (usually followed by in): to participate in profits; to participate in a play.
- particularistic — exclusive attention or devotion to one's own particular interests, party, etc.
- partition ratio — A partition ratio is a measurement of the relative degree to which a solute which is going to be separated is distributed between a solvent and sorption medium.
- partners---desk — a desk constructed so that two people may work at it face-to-face, as one having a kneehole and drawers on two fronts.
- party political — Party political matters relate to political parties.
- pass-the-parcel — a children's game in which a parcel with lots of wrappings is passed round while music plays; each time the music stops the person holding the parcel takes a layer of wrapping off
- passenger train — railway train that carries people
- passport holder — a person who has a passport
- passport office — an office which issues passports
- past participle — a participle with past, perfect, or passive meaning, as fallen, sung, defeated; perfect participle: used in English and other languages in forming the present perfect, pluperfect, and passive and as an adjective.
- pastel-coloured — pale-coloured; in a shade such as pink or pale blue
- pastoral letter — pastoral (defs 11, 12).
- pastoral prayer — the main prayer in a church service.
- pastoralization — to make pastoral or rural.
- patagonian hare — a burrowing, gray, long-eared and long-legged cavy of the genus Dolichotis, native to South America.
- patchwork quilt — cover sewn from patches of cloth
- patellar reflex — knee jerk.