13-letter words containing a, p, t, h
- mesaticephaly — the state or condition of being mesaticephalic or mesocephalic
- metallography — the study of the structure of metals and alloys by means of microscopy.
- metallophones — Plural form of metallophone.
- metamorphosed — to change the form or nature of; transform.
- metamorphoses — a series of mythological tales or legends in verse (a.d. 7–8) by Ovid.
- metamorphosis — Biology. a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly. Compare complete metamorphosis.
- metamorphotic — Of or relating to metamorphosis.
- metanephridia — Plural form of metanephridium.
- metaphoricity — The power of a metaphor.
- metaphosphate — a salt or ester of metaphosphoric acid.
- metaphysician — a person who creates or develops metaphysical theories.
- metaphysicist — a person who creates or develops metaphysical theories.
- metaphysicize — to think, write, etc, metaphysically
- metencephalon — the anterior section of the hindbrain, comprising the cerebellum and pons.
- metenkephalin — either of two pentapeptides that bind to morphine receptors in the central nervous system and have opioid properties of relatively short duration; one pentapeptide (Met enkephalin) has the amino acid sequence Tyr-Gly-Gly-Phe-Met and the other (Leu enkephalin) has the sequence Tyr-Gly-Gly-Phe-Leu.
- methylparaben — a fine, white, needlelike substance, C 8 H 8 O 3 , used chiefly as a preservative in foods and pharmaceuticals.
- methylpropane — (organic compound) isobutane.
- microchip art — (hardware) (chip art, chip graffiti) Images etched on integrated circuits purely for decoration, visible only under a microscope.
- mineral pitch — asphalt.
- misanthropist — a hater of humankind.
- moderatorship — The position or office of a moderator.
- monophosphate — a salt containing only one phosphate group.
- monophthongal — (linguistics) Of or pertaining to a monophthong.
- monotherapies — Plural form of monotherapy.
- morpho-syntax — the study of the morphological and syntactic properties of linguistic or grammatical units.
- moustache cup — mustache cup.
- multihospital — comprising or relating to several hospitals
- musicotherapy — the treatment of mental disorders with music
- mycetophagous — That feeds on fungi.
- mythographies — Plural form of mythography.
- naphthylamine — (organic compound) Either of two isomeric primary amines derived from naphthalene; they occur in crude oil, and are used in the preparation of dyes and other compounds.
- nephropathies — Plural form of nephropathy.
- newport beach — a city in SW California, SE of Los Angeles.
- nonalphabetic — not employing alphabetic order
- nonpathogenic — Pathology. capable of producing disease: pathogenic bacteria.
- northern cape — the largest but least populated province in South Africa, in the NW part of the country; created in 1994 from part of Cape Province: agriculture, mining (esp diamonds). Capital: Kimberley. Pop: 1 145 861 (2011 est). Area: 139 703 sq km (361 830 sq miles)
- on a par with — If you say that two people or things are on a par with each other, you mean that they are equally good or bad, or equally important.
- on the carpet — a heavy fabric, commonly of wool or nylon, for covering floors.
- on the parish — receiving parochial relief
- onychophagist — the practice of biting one's nails, especially when done habitually and as a symptom of emotional disturbance.
- open and shut — immediately obvious upon consideration; easily decided: an open-and-shut case of murder.
- open-and-shut — immediately obvious upon consideration; easily decided: an open-and-shut case of murder.
- openheartedly — Alt form open-heartedly.
- ophthalmology — the branch of medical science dealing with the anatomy, functions, and diseases of the eye.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- opisthography — the practice of writing on the front and back of a parchment or papyrus
- oprahfication — the perceived increase in people’s desire to discuss their emotions or personal problems, attributed to the influence of confessional television programmes
- opthalmoscope — Misspelling of ophthalmoscope.
- 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.
- optical bench — an apparatus, as a special table or rigid beam, for the precise positioning of light sources, screens, and optical instruments used for optical and photometric studies, having a ruled bar to which these devices can be attached and along which they can be readily adjusted.