11-letter words containing p, r, i, e
- low-protein — Low-protein substances contain very little protein.
- lower apsis — See under apsis (def 1).
- luminophore — a molecule or group of molecules that emits light when illuminated.
- luteotropic — affecting the corpus luteum.
- luteotropin — prolactin.
- lyophilizer — Freeze-drying equipment; freeze-dryer.
- madreporian — Resembling, or pertaining to, the genus Madrepora.
- madreporite — a sievelike plate in certain echinoderms, through which water passes into the vascular system.
- magic paper — An early interactive symbolic mathematics system.
- magpie lark — a black-and-white pied bird, Grallina cyanoleuca, inhabiting areas near water in Australia and southern New Guinea.
- mailpersons — Plural form of mailperson.
- major piece — a queen or rook.
- malpractice — Law. failure of a professional person, as a physician or lawyer, to render proper services through reprehensible ignorance or negligence or through criminal intent, especially when injury or loss follows.
- managership — a person who has control or direction of an institution, business, etc., or of a part, division, or phase of it.
- manila rope — rope made from Manila hemp.
- map-reading — the act or skill of interpreting the significance of a geographical map
- marking pen — marker (def 10).
- marlinspike — a pointed iron implement used in separating the strands of rope in splicing, marling, etc.
- masterpiece — a person's greatest piece of work, as in an art.
- media group — an association of companies involved with the means of mass communication
- memberships — Plural form of membership.
- memory chip — In a computer, the memory chip is the microchip in which information is stored.
- menispermum — any of several tropical climbing plants of the genus Menispermum of the family Menispermaceae
- meromorphic — of or relating to a function that is analytic, except for poles, in a given domain.
- mesomorphic — pertaining to or having a muscular or sturdy body build characterized by the relative prominence of structures developed from the embryonic mesoderm (contrasted with ectomorphic, endomorphic).
- mesonephric — one of the three embryonic excretory organs of vertebrates, becoming the functional kidney of fishes and amphibians and becoming part of the tubules or ductules in the reproductive systems of higher vertebrates.
- mesospheric — Of or pertaining to the mesosphere.
- mesotrophic — (of freshwater lakes) containing medium levels of nutrients
- metamorphic — pertaining to or characterized by change of form, or metamorphosis.
- metanephric — one of the three embryonic excretory organs of higher vertebrates, becoming the permanent and functional kidney.
- metanephroi — Plural form of metanephros.
- metaphorist — a creator or user of metaphors
- metaphorize — To describe something using metaphors.
- metaphrasis — a metaphrase
- metaprotein — a hydrolytic derivative of protein, insoluble in water but soluble in dilute acids or alkalis.
- metatrophic — requiring dead organic matter for food.
- metempirics — the philosophy dealing with the existence of things outside, or beyond, experience.
- microampere — a unit of electric current, equal to one millionth of an ampere. Symbol: μA.
- microcephal — a person with microcephaly
- microphages — Plural form of microphage.
- microphones — Plural form of microphone.
- microphytes — Plural form of microphyte.
- microscopes — Plural form of microscope.
- microsphere — a very small medical particle, containing a diagnostic or therapeutic agent, that is injected into the blood
- microspores — Plural form of microspore.
- mildewproof — able to withstand or repel the effect of mildew.
- milk powder — dry milk.
- milliampere — a unit of electric current equal to one thousandth of an ampere. Abbreviation: mA.
- mimeographs — Plural form of mimeograph.
- mimographer — a writer of mimes