13-letter words containing m, a, t, p
- pilaster mass — an engaged pier, usually plain, used as a buttress.
- pivot grammar — a loose grammar said to govern two-word utterances by children
- plagiostomous — plagiostome
- plagiotropism — plagiotropic tendency or growth.
- plant hormone — an organic chemical, as auxin, produced by plant cells and functioning at various sites to regulate growth, turning, metabolic processes, etc.
- plant kingdom — the plants of the world collectively.
- plasmodesmata — any of many minute strands of cytoplasm that extend through plant cell walls and connect adjoining cells.
- plastic money — credit cards, used instead of cash
- platform game — a type of computer game that is played by moving a figure on the screen through a series of obstacles and problems
- platform shoe — a shoe with a platform.
- platiniridium — a natural alloy composed chiefly of platinum and iridium.
- platinum disc — (in Britain) an album certified to have sold 300 000 copies or a single certified to have sold 600 000 copies
- platyhelminth — any worm of the phylum Platyhelminthes; a flatworm.
- play for time — a dramatic composition or piece; drama.
- play the game — an amusement or pastime: children's games.
- plethysmogram — the recording of a plethysmograph.
- pneumatograph — pneumograph.
- pneumatolysis — the process by which rocks are altered or minerals and ores are formed by the action of vapors given off by magma.
- pneumatolytic — resulting from pneumatolysis
- pneumatometer — an instrument for measuring either the quantity of air inhaled or exhaled during a single inspiration or expiration or the force of inspiration or expiration.
- pneumatophore — Botany. a specialized structure developed from the root in certain plants growing in swamps and marshes, serving as a respiratory organ.
- pneumogastric — of or relating to the lungs and stomach.
- pococurantism — a careless or indifferent person.
- polychromatic — having or exhibiting a variety of colors.
- polycythaemia — an abnormal condition of the blood characterized by an increase in the number of red blood cells. It can occur as a primary disease of unknown cause (polycythaemia vera or erythraemia) or in association with respiratory or circulatory diseases
- polythalamous — having multiple chambers
- pompton lakes — a town in NE New Jersey.
- portal system — a vascular arrangement in which blood from the capillaries of one organ is transported to the capillaries of another organ by a connecting vein or veins.
- porte-monnaie — a purse or pocketbook
- portrait mode — an orientation that is vertical rather than horizontal
- post-cambrian — Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 570 million to 500 million years ago, when algae and marine invertebrates were the predominant form of life.
- post-marriage — (broadly) any of the diverse forms of interpersonal union established in various parts of the world to form a familial bond that is recognized legally, religiously, or socially, granting the participating partners mutual conjugal rights and responsibilities and including, for example, opposite-sex marriage, same-sex marriage, plural marriage, and arranged marriage: Anthropologists say that some type of marriage has been found in every known human society since ancient times. See Word Story at the current entry.
- postage meter — an office machine used in bulk mailing that imprints prepaid postage and a dated postmark.
- postage stamp — small adhesive label for mail
- postage-stamp — of very small area or size: a postage-stamp bikini.
- postmenstrual — of or relating to menstruation or to the menses.
- posttraumatic — occurring after physical or psychological trauma.
- posttreatment — an act or manner of treating.
- postvasectomy — of or occurring in the period after a vasectomy
- potamological — of or relating to potamology
- potato famine — a severe shortage of food caused by the failure of the potato crop
- potato-masher — a kitchen implement used to crush or mash potatoes
- potomac fever — the determination or fervor to share in the power and prestige of the U.S. government in Washington, D.C., especially by being appointed or elected to a government position.
- potomac river — a river flowing SE from the Allegheny Mountains in West Virginia, along the boundary between Maryland and Virginia to the Chesapeake Bay. 287 miles (460 km) long.
- practice exam — an informal examination taken as a preparation for an actual or formal examination
- practice game — any informal game (of sports, chess, etc) played as preparation for a real game
- praetorianism — the control of a society by force or fraud, especially when exercised through titular officials and by a powerful minority.
- pragmatically — of or relating to a practical point of view or practical considerations.
- pre christmas — the annual festival of the Christian church commemorating the birth of Jesus: celebrated on December 25 and now generally observed as a legal holiday and an occasion for exchanging gifts.
- pre-agreement — the act of agreeing or of coming to a mutual arrangement.