16-letter words containing t, o, r, i
- hummingbird moth — hawk moth.
- huyton-with-roby — an urban district in Merseyside, NW England, E of Liverpool.
- hydration number — the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
- hydroelectricity — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- hydroformylation — the addition of a hydrogen atom and the formyl group to a double bond of a hydrocarbon by reaction with a mixture of carbon monoxide and hydrogen in the presence of a catalyst.
- hydrostatic head — The hydrostatic head is the vertical height of a column of fluid.
- hyper-conformity — action in accord with prevailing social standards, attitudes, practices, etc.
- hyper-patriotism — devoted love, support, and defense of one's country; national loyalty.
- hypercompetitive — Extremely competitive.
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- hypercorrections — Plural form of hypercorrection.
- hyperinnervation — the act of innervating; state of being innervated.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hyperthermophile — (biology) An organism that lives and thrives in an extremely hot environment, such as a deep sea smoker vent; often a member of the Archaea.
- hyperventilation — excessively rapid and deep breathing.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- hypocoristically — In a hypocoristic manner.
- hyponitrous acid — an unstable, crystalline acid, H 2 N 2 O 2 .
- i'm sorry to say — You use the expression I'm sorry to say to express regret together with disappointment or disapproval.
- ichthyophthirius — ich.
- icositetrahedron — a solid figure having 24 faces.
- if it wasn't for — If you talk about what would happen if it wasn't for someone or something, you mean that they are the only thing that is preventing it from happening.
- immersion heater — a small electric coil used to heat a liquid, as a cup of water, in which it is immersed.
- immigration laws — regulations on incoming foreigners
- immunodepressant — preventing or diminishing the immune response
- immunomodulatory — (medical) Having the ability to alter or regulate immune functions.
- immunoregulation — (immunology) The control of immune responses between lymphocytes and macrophages.
- immunoregulatory — Of or pertaining to immunoregulation.
- impact extrusion — an extrusion process in which a slug of cold metal in a shallow die cavity is formed by the action of a rapidly moving punch that forces the metal through the die or back around the punch.
- imperfect flower — a unisexual flower with only stamens or only pistils
- import surcharge — a tax imposed on all imported goods, adding to any established tariffs
- in a brown study — in a reverie or daydream
- in loco parentis — in the place or role of a parent.
- in proportion to — If one thing increases or decreases in proportion to another thing, it increases or decreases to the same degree as that thing.
- in the course of — If something happens in the course of a particular period of time, it happens during that period of time.
- in the long term — You use the expressions in the long term, in the short term, and in the medium term to talk about what will happen over a long period of time, over a short period of time, and over a medium period of time.
- in the nature of — essentially the same as; by way of
- in the region of — You say in the region of to indicate that an amount that you are stating is approximate.
- in the short run — to go quickly by moving the legs more rapidly than at a walk and in such a manner that for an instant in each step all or both feet are off the ground.
- in the throes of — If you are in the throes of doing or experiencing something, especially something difficult, you are busy doing it or are deeply involved in it.
- in the worst way — bad or ill in the highest, greatest, or most extreme degree: the worst person.
- in utero surgery — surgery performed on a fetus while it is in the womb.
- in your own time — If you do something in your own time, you do it at the speed that you choose, rather than allowing anyone to hurry you.
- in/into a temper — If someone is in a temper or gets into a temper, the way that they are behaving shows that they are feeling angry and impatient.
- inauguration day — the day on which the president of the United States is inaugurated, being January 20 of every year following a year whose number is divisible by four. Prior to the Twentieth Amendment to the Constitution (ratified February 6, 1933), it was March 4.
- inboard-outboard — Also, outdrive, stern-drive. (of a motorboat) having an inboard engine connected to a maneuverable outboard drive-shaft unit.
- incontravertable — Misspelling of incontrovertible.
- incontrovertible — not controvertible; not open to question or dispute; indisputable: absolute and incontrovertible truth.
- incontrovertibly — not controvertible; not open to question or dispute; indisputable: absolute and incontrovertible truth.