12-letter words containing a, p, o, s, t, r
- graphologist — the study of handwriting, especially when regarded as an expression of the writer's character, personality, abilities, etc.
- grapple shot — a grapnellike projectile fired from a gun and used as a hold for the end of a line in rescue operations or in kedging.
- gravitropism — (biology, botany) a plant's ability to change its growth in response to gravity.
- heartstopper — something so frightening or emotionally gripping as to make one's heart seem to stop beating: We didn't crash, but it was a heartstopper.
- heptahedrons — Plural form of heptahedron.
- hernioplasty — an operation for the repair of a hernia.
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heteroplasty — the repair of lesions with tissue from another individual or species.
- heterotopias — Plural form of heterotopia.
- histographic — a treatise on or description of organic tissues.
- holophrastic — using or consisting of a single word that functions as a phrase or sentence.
- host adaptor — SCSI adaptor
- housepainter — A professional painter of houses.
- hyannis port — a town in SE Massachusetts, on Nantucket Sound: summer resort.
- hypercoaster — Megacoaster.
- hypogastrium — the lower and median part of the abdomen.
- hypoplastron — the third lateral plate in the plastron of turtles
- imperforates — Plural form of imperforate.
- impersonated — to assume the character or appearance of; pretend to be: He was arrested for impersonating a police officer.
- impersonates — Third-person singular simple present indicative form of impersonate.
- impersonator — a person who pretends to be another.
- importancies — Plural form of importancy.
- importations — Plural form of importation.
- imprecations — Plural form of imprecation.
- improvisator — a person who improvises; improviser.
- incorporates — Third-person singular simple present indicative form of incorporate.
- inspectorate — the office or function of an inspector.
- inspectorial — Of or pertaining to an inspector or to inspection.
- inspirations — Plural form of inspiration.
- interpolates — Third-person singular simple present indicative form of interpolate.
- interspousal — Often, spousals. the ceremony of marriage; nuptials.
- irish potato — potato (def 1).
- joseph brant — Joseph (Thayendanegea) 1742–1807, Mohawk Indian chief who fought on the side of the British in the American Revolution.
- katamorphism — metamorphism at or near the earth's surface: breaks down complex minerals into simpler ones.
- keratoplasty — plastic surgery performed upon the cornea, especially a corneal transplantation.
- laparotomies — Plural form of laparotomy.
- lycanthropes — Plural form of lycanthrope.
- macropterous — having long or large wings or fins.
- madreporites — Plural form of madreporite.
- manipulators — Plural form of manipulator.
- massotherapy — treatment by massage.
- master point — a point awarded to a bridge player who has won or placed in an officially recognized tournament.
- mastigophora — a phylum of protozoans comprising nonphotosynthetic, chiefly free-living flagellates: some species are important pathogens of humans and other animals.
- mastigophore — Any flagellate of the phylum Mastigophora.
- mediatorship — the position of a mediator
- meganthropus — a proposed genus of extinct, late lower Pleistocene primates based on two large lower jaws found in Java, and believed to be either Australopithecine or human.
- metamorphism — Geology. a change in the structure or constitution of a rock due to natural agencies, as pressure and heat, especially when the rock becomes harder and more completely crystalline.
- metamorphist — a member of a group of 16th century Christians who believed that the humanly body of Jesus Christ metamorphosed into God during the Ascension
- metamorphose — to change the form or nature of; transform.
- metamorphous — metamorphic.