15-letter words containing t, a, s, i
- partial eclipse — astronomy
- particularistic — exclusive attention or devotion to one's own particular interests, party, etc.
- passenger train — railway train that carries people
- passport office — an office which issues passports
- past continuous — past progressive.
- 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.
- pastoralization — to make pastoral or rural.
- pathophysiology — the physiology of abnormal or diseased organisms or their parts; the functional changes associated with a disease or syndrome.
- patria potestas — the power vested in the paterfamilias or head of the Roman family with respect to his wife, natural or adopted children, and agnatic descendants: title to family property is vested exclusively in the paterfamilias. Property acquired by a family member becomes family property, and no family member can enter into a transaction in his or her own right.
- pavement artist — sidewalk artist.
- pearly nautilus — nautilus (def 1).
- pedestrian mall — A pedestrian mall is the same as a pedestrian precinct.
- pematangsiantar — a city on NE Sumatra, in Indonesia.
- penal servitude — imprisonment together with hard labor.
- penetrativeness — the quality or condition of being penetrative
- performing arts — dance, drama, music
- personalization — to have marked with one's initials, name, or monogram: to personalize stationery.
- personification — the attribution of human nature or character to animals, inanimate objects, or abstract notions, especially as a rhetorical figure.
- pessimistically — pertaining to or characterized by pessimism or the tendency to expect only bad outcomes; gloomy; joyless; unhopeful: His pessimistic outlook kept him from applying for jobs for which he was perfectly qualified.
- peter of amiens — c1050–1115, French monk: preacher of the first Crusade 1095–99.
- petit serjeanty — serjeanty in which the tenant renders services of an impersonal nature to the king, as providing him annually with an implement of war, as a lance or bow.
- phase-switching — a technique used in radio interferometry in which the signal from one of the two antennae is periodically reversed in phase before being multiplied by the signal from the other antenna
- phenakistoscope — an early form of a zoetrope in which figures are depicted in different poses around the edge of a disc. When the disc is spun, and the figures observed through the apertures around the edge of the disc, they appear to be moving
- phenomenalistic — the doctrine that phenomena are the only objects of knowledge or the only form of reality.
- phosphocreatine — a compound, C 4 H 1 0 O 5 N 3 P, found chiefly in muscle, formed by the enzymatic interaction of an organic phosphate and creatine, the breakdown of which provides energy for muscle contraction.
- phosphorylation — to introduce the phosphoryl group into (an organic compound).
- phosphorylative — of or relating to phosphorylation
- photodissociate — to split or break up molecules as a result of the absorption of photons
- photoelasticity — the phenomenon of double refraction of polarized light by a transparent substance under elastic stress, used to measure strain in elastic, transparent materials.
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.
- phototransistor — a transistor that amplifies current induced by photoconductivity.
- physical optics — the branch of optics concerned with the wave properties of light, the superposition of waves, the deviation of light from its rectilinear propagation in a manner other than that considered by geometrical optics, the interaction of light with matter, and the quantum, corpuscular aspects of light.
- physicalization — to express in physical terms; give form or shape to: The dancers physicalized the mood of the music.
- physiopathology — pathophysiology.
- physiotherapist — physical therapy.
- pictorial janus — K. Kahn, Xerox. Visual extension of Janus. Requires Strand88 and a PostScript interpreter.
- pilgrim fathers — the Pilgrims (of Plymouth Colony)
- pilgrimage site — a shrine or other sacred place that people travel to as an act of religious devotion
- pine tree state — Maine (used as a nickname).
- pistachio green — a light or medium shade of yellow green.
- pitcairn island — a small British island in the S Pacific, SE of Tuamotu Archipelago: settled 1790 by mutineers of the Bounty. 2 sq. mi. (5 sq. km).
- pitch blackness — extreme darkness; lack of light
- pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
- plagiostomatous — plagiostome
- plainclothesman — a police officer, especially a detective, who wears ordinary civilian clothes while on duty.
- planet-stricken — believed to be adversely affected mentally or physically by the planets
- plantaginaceous — relating to or belonging to the family Plantaginaceae
- plastic surgeon — doctor who performs cosmetic surgery
- plastic surgery — the branch of surgery dealing with the repair or replacement of malformed, injured, or lost organs or tissues of the body, chiefly by the transplant of living tissues.
- plate tectonics — a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past adjacent plates.