16-letter words containing r, i, t, l
- hit a brick wall — unable to continue or make progress because of a hindrance
- holder condition — Lipschitz condition.
- holier-than-thou — obnoxiously pious; sanctimonious; self-righteous.
- homeric laughter — loud, hearty laughter, as of the gods.
- hopfield network — (artificial intelligence) (Or "Hopfield model") A kind of neural network investigated by John Hopfield in the early 1980s. The Hopfield network has no special input or output neurons (see McCulloch-Pitts), but all are both input and output, and all are connected to all others in both directions (with equal weights in the two directions). Input is applied simultaneously to all neurons which then output to each other and the process continues until a stable state is reached, which represents the network output.
- horizontal plane — flat surface parallel to the horizon
- horizontal union — a labor union organized by skills or trades of its members rather than by industries.
- horsetail agaric — the shaggy-mane.
- horticulturalist — Misspelling of horticulturist.
- hospital corners — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
- hospital service — the whole organization of government funded hospitals, their staff, and the services they provide
- hostile takeover — a takeover that is not approved by the management of the corporation being acquired or that is accomplished through the secret purchase of stock.
- hot cold-working — metalworking at considerable heat but below the temperature at which the metal recrystallizes: a form of cold-working.
- hunt the slipper — a children's game in which the players look for a hidden slipper or other object, such as a thimble (hunt the thimble)
- hybrid perpetual — a type of cultivated rose bred from varieties having vigorous growth and more or less recurrent bloom.
- hydrated alumina — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- hydraulic cement — cement that can solidify under water.
- 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.
- hyperflexibility — capable of being bent, usually without breaking; easily bent: a flexible ruler.
- hyperintelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hyperperistalsis — the progressive wave of contraction and relaxation of a tubular muscular system, especially the alimentary canal, by which the contents are forced through the system.
- hypersensibility — capacity for sensation or feeling; responsiveness or susceptibility to sensory stimuli.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hypersusceptible — hypersensitive (def 2).
- 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.
- hypervariability — apt or liable to vary or change; changeable: variable weather; variable moods.
- hypervascularity — pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap.
- hyperventilating — Present participle of hyperventilate.
- hyperventilation — excessively rapid and deep breathing.
- hypocoristically — In a hypocoristic manner.
- icterine warbler — a European variety of tree warbler (Hippolais icterina )
- immelmann (turn) — a maneuver in which an airplane is half looped to an upside-down position and then half rolled back to normal, upright flight: used to gain altitude while reversing direction
- immigration laws — regulations on incoming foreigners
- 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.
- impenetrableness — The quality of being impenetrable.
- imperceptibility — very slight, gradual, or subtle: the imperceptible slope of the road.
- imperfect flower — a unisexual flower with only stamens or only pistils
- imperfectability — The quality of not being perfectable; of being forever imperfect.
- imperfectibility — The state or quality of being imperfectible.
- impermissibility — The state or condition of being impermissible.
- imperturbability — incapable of being upset or agitated; not easily excited; calm: imperturbable composure.
- implied warranty — a warranty not stated explicitly by the seller of merchandise or real property but presumed for reasons of commercial or legal custom (distinguished from express warranty).
- impracticability — The quality or condition of being impracticable.
- impracticalities — Plural form of impracticality.
- in general terms — generally, approximately
- in loco parentis — in the place or role of a parent.