13-letter words containing y, a, m, o
- on your marks — On your marks in British English, or on your mark in American English, is a command given to runners at the beginning of a race in order to get them into the correct position to start.
- onomastically — In an onomastic way.
- opera company — a company that puts on productions of operas
- ophthalmology — the branch of medical science dealing with the anatomy, functions, and diseases of the eye.
- orchid family — the plant family Orchidaceae, characterized by terrestrial or epiphytic herbaceous plants having simple, parallel-veined, usually alternate leaves, complex and often large and showy flowers pollinated primarily by insects, and fruit in the form of a capsule containing numerous minute seeds, and including calypso, fringed orchis, lady's-slipper, pogonia, rattlesnake plantain, vanilla, as well as numerous tropical orchids such as those of the genera Cattleya, Cymbidium, Dendrobium, Phalaenopsis, and Vanda.
- ornamentality — used or grown for ornament: ornamental plants.
- oxymetazoline — a sympathomimetic drug, C 1 6 H 2 4 N 2 O, used as a topical, long-lasting nasal decongestant.
- pancreatotomy — incision of the pancreas.
- paramyxovirus — any of various RNA-containing viruses that are similar to but larger than the myxoviruses, including the viruses that cause mumps, measles, parainfluenza, and Newcastle disease.
- paranormality — the state of being paranormal
- parasymbiosis — the symbiotic relationship that occurs between certain species of fungi and lichens (which are themselves symbiotic associations between a fungus and an alga)
- passamaquoddy — a member of a small tribe of North American Indians formerly of coastal Maine and New Brunswick and now living in Maine.
- phantasmagory — phantasmagoria.
- pharmacognosy — materia medica (def 2).
- pharyngectomy — excision of part or all of the pharynx.
- phenomenality — highly extraordinary or prodigious; exceptional: phenomenal speed.
- photodynamics — the science dealing with light and its effects on living organisms.
- phrygian mode — an authentic church mode represented on the white keys of a keyboard instrument by an ascending scale from E to E.
- physharmonica — a keyboard musical instrument fitted with free reeds, and which is an early form of harmonium
- phytochemical — Also called phytonutrient. any of various bioactive chemical compounds found in plants, as antioxidants, considered to be beneficial to human health.
- plastic money — credit cards, used instead of cash
- play for time — a dramatic composition or piece; drama.
- plethysmogram — the recording of a plethysmograph.
- plough monday — the first Monday after Epiphany, which in N and E England used to be celebrated with a procession of ploughmen drawing a plough from house to house
- 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
- policy-making — Policy-making is the making of policies.
- 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
- polydaemonism — the belief in many evil spirits.
- polygamophile — a person who approves of or countenances polygamy, especially as practiced by others.
- polynomialism — a polynomial naming system
- polyoma virus — a small DNA-containing virus, of the papovavirus group, that can produce a variety of tumors in mice, hamsters, rabbits, and rats.
- polyribosomal — relating to a polyribosome
- polysomnogram — a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. Abbreviation: PSG.
- polysyllabism — a polysyllabic style or the use of multisyllabic words
- polythalamous — having multiple chambers
- poppy anemone — a southern European plant, Anemone coronaria, of the buttercup family, having tuberous roots and solitary, poppylike, red, blue, or white flowers, grown as an ornamental.
- 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.
- postvasectomy — of or occurring in the period after a vasectomy
- pre-democracy — government by the people; a form of government in which the supreme power is vested in the people and exercised directly by them or by their elected agents under a free electoral system.
- predominantly — having ascendancy, power, authority, or influence over others; preeminent.
- predominately — to be the stronger or leading element or force.
- primary color — Art. a color, as red, yellow, or blue, that in mixture yields other colors. Compare complementary color (def 1), secondary color, tertiary color.
- primary group — a group of individuals living in close, intimate, and personal relationship.
- primary tooth — one of the temporary teeth of a mammal that are replaced by the permanent teeth.
- primordiality — constituting a beginning; giving origin to something derived or developed; original; elementary: primordial forms of life.
- priority mail — (in the U.S. Postal Service) mail consisting of merchandise weighing more than 12 ounces sent at first-class rates.
- pro-democracy — government by the people; a form of government in which the supreme power is vested in the people and exercised directly by them or by their elected agents under a free electoral system.
- promotability — to help or encourage to exist or flourish; further: to promote world peace.