13-letter words containing t, h, i, o
- iceman cometh — a play (1946) by Eugene O'Neill.
- ichthyofaunal — relating to ichthyofauna
- ichthyologist — the branch of zoology dealing with fishes.
- ichthyopsidan — a member of the class Ichthyopsida
- ichthyosaurus — ichthyosaur.
- idiochromatic — (of a mineral) deriving a characteristic color from its capacity to absorb certain light rays.
- idiorrhythmic — self-regulating; allowing each member to regulate his or her own life
- immunochemist — A chemist whose speciality is immunochemistry.
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- in good faith — accordance with standards of honesty, trust, sincerity, etc. (usually preceded by in): If you act in good faith, he'll have no reason to question your motives.
- in order that — used to introduce a clause of purpose
- in silhouette — If you see something in silhouette, you see it as a dark shape with no detail except for the outline.
- in the act of — while committing: crime, transgression
- in the clouds — a visible collection of particles of water or ice suspended in the air, usually at an elevation above the earth's surface.
- in the groove — a long, narrow cut or indentation in a surface, as the cut in a board to receive the tongue of another board (tongue-and-groove joint) a furrow, or a natural indentation on an organism.
- in the hopper — a person or thing that hops.
- in the offing — the more distant part of the sea seen from the shore, beyond the anchoring ground.
- in the pay of — If you say that someone is in the pay of a certain person or group, you disapprove of the fact that they are being paid by and are working for that person or group, often secretly or illegally.
- in the pocket — (of a fly half) in an attacking position slightly further back from play than normal, making himself available for a drop goal attempt
- in the way of — similar to, like
- inductothermy — the production of fever by means of electromagnetic induction.
- infant school — In Britain, an infant school is a school for children between the ages of five and seven.
- inhabitations — Plural form of inhabitation.
- inharmonicity — the quality of being inharmonic
- inhomogeneity — lack of homogeneity.
- inhospitality — lack of hospitality; inhospitable attitude toward or treatment of visitors, guests, etc.
- inspectorship — The condition of being an inspector; the office of an inspector.
- interchondral — of or relating to cartilage or a cartilage.
- into the blue — into the unknown or the far distance
- into the wind — against the wind or upwind
- into thin air — a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere.
- intrathoracic — (anatomy) Within the thorax.
- iontophoresis — a painless alternative to drug injection in which a weak electrical current is used to stimulate drug-carrying ions to pass through intact skin.
- iontophoretic — Of or pertaining to iontophoresis.
- isle of wight — Isle of, an island off the S coast of England, forming an administrative division of Hampshire. 147 sq. mi. (381 sq. km). County seat: Newport.
- isle of youth — Isle of, an island in the Caribbean, a special municipality in S Cuba. 1182 sq. mi. (3060 sq. km).
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isodrosotherm — a line on a weather map or chart connecting points having an equal dew point.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- jequitinhonha — a river in E Brazil, flowing from the state of Minas Gerais to the Atlantic Ocean. 500 miles (805 km) long.
- jodhpuri coat — a coat worn by men in India, similar to but shorter than a sherwani
- john endicott — John, Endecott, John.
- john winthrop — John, 1588–1649, English colonist in America: 1st governor of the Massachusetts Bay colony 1629–33, 1637–40, 1642–44, 1646–49.
- johore strait — a narrow strait between Malaya and Singapore Island
- joint honours — an honours university degree in which a student studies two separate subjects, as opposed to a single subject
- joseph lister — Joseph, 1st Baron Lister of Lyme Regis [lahym ree-jis] /laɪm ˈri dʒɪs/ (Show IPA), 1827–1912, English surgeon: founder of modern antiseptic surgery.
- joseph ritter — Joseph Elmer, 1891–1967, U.S. cardinal.
- joseph stalin — Joseph V (Iosif Vissarionovich Dzhugashvili or Dzugashvili) 1879–1953, Soviet political leader: secretary general of the Communist Party 1922–53; premier of the U.S.S.R. 1941–53.
- karaoke night — a social occasion when karaoke sessions are held for entertainment, often in a pub or bar