12-letter words containing r, e, t, i, n, o
- introvertive — the act of introverting or the state of being introverted.
- inventioneer — (rare) inventor.
- inventorying — Present participle of inventory.
- investigator — to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
- inveteration — The act of making inveterate.
- invigorative — to give vigor to; fill with life and energy; energize.
- ionospherist — Someone who studies the ionosphere.
- iontotherapy — (medicine) The therapeutic use of iontophoresis.
- iron pyrites — pyrite; fool's gold.
- iron sulfate — ferrous sulfate.
- iron-hearted — cruel; heartless; unfeeling.
- irreflection — lack of careful or long consideration
- irresolution — lack of resolution; lack of decision or purpose; vacillation.
- isosthenuria — the inability of the kidneys to dilute or concentrate urine
- isotretinoin — a yellowish-orange to orange crystalline powder, C 20 H 28 O 2 , used in the treatment of cystic acne.
- jeffersonite — (mineralogy) A variety of pyroxene of olive-green color passing into brown. It contains zinc.
- job creation — the process by which the number of jobs in an area, organization, etc is increased
- joint return — a U.S. income-tax return reporting the combined income of a married couple.
- joint runner — (in plumbing) incombustible materials for packing a joint to be caulked with lead.
- journey time — the time taken to make a journey
- karyokinetic — Of or pertaining to karyokinesis.
- keratinocyte — An epidermal cell that produces keratin.
- keratohyalin — (biology) A protein structure found in granules in the stratum granulosum of the epidermis, which may be involved in keratinization, and in Hassall corpuscles in the thymus.
- kinetography — a camera for taking pictures for a kinetoscope.
- kiteboarding — A sport in which participants ride a form of wakeboard or surfboard harnessed to a large kite which is controlled by the rider.
- kitty-corner — diagonal.
- lactoprotein — any protein existing in milk.
- lake ontario — a province in S Canada, bordering on the Great Lakes. 412,582 sq. mi. (1,068,585 sq. km). Capital: Toronto.
- laterization — the weathering process by which rock is changed to laterite.
- lectionaries — Plural form of lectionary.
- lepidopteran — lepidopterous.
- lepidopteron — any lepidopterous insect.
- letterboxing — Also, letter box. Chiefly British. a public or private mailbox.
- leukotrienes — Plural form of leukotriene.
- lever-action — (of a rifle) having a lever action.
- levorotation — Rotation in an anticlockwise direction, especially such rotation of the plane of polarized light.
- liberational — Relating to, or aiding, liberation; liberatory.
- liberty bond — a single Liberty loan bond.
- liberty loan — any of the five bond issues of the U.S. government floated in World War I.
- linear motor — an electric motor in which a movable part moves in a straight line, with power being supplied by a varying magnetic field set up by a fixed part of the system, as a metal rail on the ground.
- linzer torte — a sweet pastry, often made with powdered nuts, having a filling of red jam and a lattice crust.
- lion-hearted — exceptionally courageous or brave.
- liothyronine — A form of thyroid hormone used to treat hypothyroidism and myxedema coma.
- lipoproteina — a plasma lipoprotein containing protein and cholesterol, high levels of which are associated with atherosclerosis.
- lipoproteins — Plural form of lipoprotein.
- liverpolitan — a native or inhabitant of Liverpool
- logocentrism — a method of literary analysis in which words and language are regarded as a fundamental expression of external reality, excluding nonlinguistic factors such as historical context.
- long-termism — the tendency to focus attention on long-term gains
- lovecraftian — referring to or reminiscent of the work of the American fantasy and horror fiction author H.P. Lovecraft (1870–1937)
- macroetching — to etch deeply into the surface of (a metal).