13-letter words containing m, a, c, h
- optic chiasma — a site at the base of the forebrain where the inner half of the fibers of the left and right optic nerves cross to the opposite side of the brain.
- 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.
- orchidomaniac — a person who is obsessed with or has a passion for orchids
- ornithomantic — relating to ornithomancy
- palm-oil chop — a W African dish made with meat and palm oil
- panharmonicon — a mechanical instrument that imitates orchestral sounds
- party machine — the internal organization of a political party, which decides its policies and directs its activities
- patch pumpkin — pumpkin
- pathognomonic — Medicine/Medical. characteristic or diagnostic of a specific disease: a pathognomonic sign of pneumonia.
- peach blossom — the flower of the peach tree: the state flower of Delaware.
- perilymphatic — the fluid between the bony and membranous labyrinths of the ear.
- petrochemical — a chemical substance obtained from petroleum or natural gas, as gasoline, kerosene, or petrolatum.
- phantom stock — an employee bonus expressed as the cash value of a specified amount of company stock to be received at a future date, meant to create employee interest in raising stock prices without giving any stock away.
- pharmaceutics — a pharmaceutical preparation or product.
- pharmacognosy — materia medica (def 2).
- pharmacologic — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharmacopoeia — a book published usually under the jurisdiction of the government and containing a list of drugs, their formulas, methods for making medicinal preparations, requirements and tests for their strength and purity, and other related information.
- pharyngectomy — excision of part or all of the pharynx.
- phonocamptics — the branch of acoustics dealing with echoes
- photochemical — the branch of chemistry that deals with the chemical action of light.
- photodynamics — the science dealing with light and its effects on living organisms.
- 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.
- poison sumach — an anacardiaceous swamp shrub, Rhus (or Toxicodendron) vernix of the southeastern US, that has greenish-white berries and causes an itching rash on contact with the skin
- poker machine — a fruit machine
- 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
- pomme blanche — breadroot.
- pompano beach — a city in SE Florida.
- 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-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.
- preattachment — an act of attaching or the state of being attached.
- primary cache — (hardware, architecture) (L1 cache, level one cache) A small, fast cache memory inside or close to the CPU chip. For example, an Intel 80486 has an eight-kilobyte on-chip cache, and most Pentiums have a 16-KB on-chip level one cache that consists of an 8-KB instruction cache and an 8-KB data cache. The larger, slower secondary cache is normally connected to the CPU via its external bus.
- privy chamber — a private apartment in a royal residence.
- promonarchist — the principles of monarchy.
- protest march — public demonstration
- psychodynamic — Psychology. any clinical approach to personality, as Freud's, that sees personality as the result of a dynamic interplay of conscious and unconscious factors.
- psychosomatic — of or relating to a physical disorder that is caused by or notably influenced by emotional factors.
- radiochemical — pertaining to or involving radiochemistry.
- ramapithecine — of or relating to an extinct hominoid of the genus Ramapithecus
- rapprochement — an establishment or reestablishment of harmonious relations: a rapprochement reached between warring factions.
- reach-me-down — a garment that is cheaply ready-made or second-hand
- regime change — the transition from one political regime to another, esp through concerted political or military action
- rhinoscleroma — an inflammatory bacterial disease of the nose that is mostly found in Africa and Central America
- rogue's march — a derisive tune played to accompany a person's expulsion from a regiment, community, etc.
- saccharimeter — an optical instrument for determining the strength of sugar solutions by measuring the rotation of the plane of polarized light they produce.
- saccharimetry — the process of measuring the amount of sugar in a sample, as with a saccharimeter or by polarimetry.
- saccharometer — an instrument for measuring the amount of sugar in a solution, as by determining the specific gravity of the solution.
- saccharometry — the process of determining the quantity of sugar in a solution
- saccharomyces — a fungus of the genus Saccharomyces, esp the yeast plant