13-letter words containing a, t, r, i, s
- indian desert — Thar Desert.
- indisturbance — Freedom from disturbance; calmness; repose.
- indoctrinates — Third-person singular simple present indicative form of indoctrinate.
- industrialise — Non-Oxford British standard spelling of industrialize.
- industrialism — an economic organization of society built largely on mechanized industry rather than agriculture, craftsmanship, or commerce.
- industrialist — a person who owns or is involved in the management of an industrial enterprise.
- industrialize — to introduce industry into (an area) on a large scale.
- inertial mass — the mass of a body as determined by the second law of motion from the acceleration of the body when it is subjected to a force that is not due to gravity.
- infiltrations — Plural form of infiltration.
- informalities — Plural form of informality.
- infraposition — A situation or position beneath.
- infrared star — a star radiating strongly in the infrared portion of the electromagnetic spectrum.
- inner sanctum — sanctum (def 2).
- inobservation — lack of observation
- inquisitorial — of or relating to an inquisitor or inquisition.
- inscriptional — Of or pertaining to inscription.
- inspectorates — Plural form of inspectorate.
- inspirational — imparting inspiration.
- instructional — the act or practice of instructing or teaching; education.
- instrumentals — Plural form of instrumental.
- insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
- insupportable — not endurable; unbearable; insufferable: insupportable pain.
- insupportably — In an insupportable manner.
- insusurration — (obsolete) The act of whispering into something.
- integral test — the theorem that a given infinite series converges if the function whose value at each integer is the corresponding term in the series is decreasing, tends to zero, and results in a finite number when integrated from one to infinity.
- inter-assured — to make (a future event) sure; ensure: This contract assures the company's profit this month.
- interest rate — amount added to money borrowed
- interglacials — Plural form of interglacial.
- interiorscape — An installation of plants decorating the inside of a building.
- intermediates — Plural form of intermediate.
- intermodalism — pertaining to or suitable for transportation involving more than one form of carrier, as truck and rail, or truck, ship, and rail.
- intermuscular — of or relating to muscle or the muscles: muscular strain.
- internalising — Present participle of internalise.
- interoperates — Third-person singular simple present indicative form of interoperate.
- interosculant — Mutually touching or intersecting.
- interosculate — to interpenetrate; inosculate.
- interpersonal — of or pertaining to the relations between persons: He has strong interpersonal skills.
- interpilaster — a space between two pilasters
- interpleaders — Plural form of interpleader.
- interrogators — Plural form of interrogator.
- interscapular — between the scapulae or shoulder blades.
- intersexually — In an intersexual way.
- intersidereal — interstellar
- intersocietal — noting or pertaining to large social groups, or to their activities, customs, etc.
- interstellary — interstellar
- interstitials — Plural form of interstitial.
- interstratify — to lie in interposed or alternate strata.
- intracapsular — Within a capsule.
- intradistrict — Within a single district.
- intramuscular — located or occurring within a muscle.