15-letter words containing p, i, s, e, r
- hyperthyroidism — overactivity of the thyroid gland.
- hypochondriases — Plural form of hypochondriasis.
- hypocrystalline — (of igneous rocks) having both glass and crystalline components
- hysteresis loop — a closed curve showing the variation of the magnetic flux density of a ferromagnetic material with the external magnetic field producing it, when this field is changed through a complete cycle
- identity papers — law: legal documents
- immune response — any of the body's immunologic reactions to an antigen.
- imperfect stage — a phase in the life cycle of certain fungi in which either no spores or asexual spores, as conidia, are produced.
- imperial bushel — a unit of dry measure containing 4 pecks, equivalent in the U.S. (and formerly in England) to 2150.42 cubic inches or 35.24 liters (Winchester bushel) and in Great Britain to 2219.36 cubic inches or 36.38 liters (Imperial bushel) Abbreviation: bu., bush.
- imperial system — a system of measurement units, including the foot, pound, and second, as well as miles and yards
- imperishability — not subject to decay; indestructible; enduring.
- imperscriptible — not supported by written authority
- imperviableness — the state of being imperviable
- importunateness — Quality of being importunate.
- impregnableness — The state of being impregnable; impregnability.
- imprescriptable — Alt form imprescriptible.
- imprescriptible — not subject to prescription.
- imprescriptibly — In an imprescriptible manner; obviously.
- impressibleness — The state of being impressible; impressibility.
- impressionistic — a person who follows or adheres to the theories, methods, and practices of impressionism, especially in the fields of painting, music, or literature.
- improvvisatrice — Alternative form of improvisatrice.
- impulse turbine — a turbine moved by free jets of fluid striking the blades of the rotor together with the axial flow of fluid through the rotor.
- inapprehensible — That cannot be apprehended; not apprehensible to or graspable by either body or mind.
- incomprehension — lack of comprehension or understanding: The audience listened politely but with incomprehension.
- incomprehensive — not comprehensive.
- indirect speech — Indirect speech is speech which tells you what someone said, but does not use the person's actual words: for example, 'They said you didn't like it', 'I asked him what his plans were', and 'Citizens complained about the smoke'.
- ingush republic — a constituent republic of S Russia: part of the Checheno-Ingush Autonomous Republic from 1936 until 1992. Capital: Magas (formerly at Nazran). Pop: 468 900 (2002). Area: 3600 sq km (1390 sq miles)
- inoperativeness — The state or condition of being inoperative; nonfunction.
- inopportuneness — The quality of being inopportune.
- inseparableness — The quality or state of being inseparable.
- inspection arms — a position in military drill in which the missile chamber of a weapon is open for inspection.
- insuperableness — The quality of being insuperable or insurmountable; insuperability.
- insurance stamp — an insurance contribution
- intemperateness — The quality of being intemperate.
- intercomparison — mutual comparison
- interior-sprung — (esp of a mattress) containing springs
- interiorscaping — The design, installation, and maintenance of interiorscapes.
- internal spline — any one of a series of grooves in a mating part into which external splines fit to prevent movement between two parts, esp in transmitting torque
- interparoxysmal — occurring in the period or periods between paroxysms.
- interpenetrates — Third-person singular simple present indicative form of interpenetrate.
- interpersonally — of or pertaining to the relations between persons: He has strong interpersonal skills.
- interpretations — Plural form of interpretation.
- introspectional — Of or relating to introspection.
- introspectively — characterized by introspection, the act or process of looking into oneself.
- introspectivity — The quality of being introspective.
- introsusception — intussusception.
- ionospherically — by the ionosphere
- ipsissima verba — with the very words; verbatim.
- irreparableness — The quality of being irreparable.
- irreprehensible — Not reprehensible, blameless, without blame; innocent.
- irreprehensibly — in an irreprehensible manner