16-letter words containing l, e, b, r
- granville-barker — Harley, 1877–1946, English dramatist, actor, and critic.
- great blue heron — a large American heron, Ardea herodias, having bluish-gray plumage.
- green vegetables — green edible plants
- harleian library — a large library of manuscripts collected by the British statesman Robert Harley and his son and now housed in the British Museum.
- hawksbill turtle — a sea turtle, Eretmochelys imbricata, the shell of which is the source of tortoise shell: an endangered species.
- hebbian learning — (artificial intelligence) The most common way to train a neural network; a kind of unsupervised learning; named after canadian neuropsychologist, Donald O. Hebb. The algorithm is based on Hebb's Postulate, which states that where one cell's firing repeatedly contributes to the firing of another cell, the magnitude of this contribution will tend to increase gradually with time. This means that what may start as little more than a coincidental relationship between the firing of two nearby neurons becomes strongly causal. Despite limitations with Hebbian learning, e.g., the inability to learn certain patterns, variations such as Signal Hebbian Learning and Differential Hebbian Learning are still used.
- heterometabolism — insect development in which the young hatch in a form very similar to the adult and then mature without a pupal stage
- heterometabolous — undergoing development in which the young are born adultlike in form, often maturing without a pupal stage.
- hold a brief for — to argue for; champion
- horsehead nebula — a dark nebula in the constellation Orion, composed of opaque cosmic dust and resembling the head of a horse.
- hot-water bottle — a bag, usually of rubber, for holding hot water to apply warmth to some part of the body, as the feet.
- huckleberry finn — (The Adventures of Huckleberry Finn) a novel (1884) by Mark Twain.
- humboldt current — a cold Pacific Ocean current flowing N along the coasts of Chile and Peru.
- hyaloid membrane — the delicate, pellucid, and nearly structureless membrane enclosing the vitreous humor of the eye.
- hybrid perpetual — a type of cultivated rose bred from varieties having vigorous growth and more or less recurrent bloom.
- hyperflexibility — capable of being bent, usually without breaking; easily bent: a flexible ruler.
- hyperreal number — any of the set of numbers formed by the addition of infinite numbers and infinitesimal numbers to the set of real numbers
- hypersensibility — capacity for sensation or feeling; responsiveness or susceptibility to sensory stimuli.
- hypersusceptible — hypersensitive (def 2).
- hypervariability — apt or liable to vary or change; changeable: variable weather; variable moods.
- icterine warbler — a European variety of tree warbler (Hippolais icterina )
- immeasurableness — The state or condition of being immeasurable.
- impenetrableness — The quality of being impenetrable.
- imperceptibility — very slight, gradual, or subtle: the imperceptible slope of the road.
- imperfectability — The quality of not being perfectable; of being forever imperfect.
- imperfectibility — The state or quality of being imperfectible.
- imperishableness — The characteristic or property of being imperishable.
- impermissibility — The state or condition of being impermissible.
- imperturbability — incapable of being upset or agitated; not easily excited; calm: imperturbable composure.
- incommensurables — Plural form of incommensurable.
- incomprehensible — impossible to understand or comprehend; unintelligible.
- incomprehensibly — impossible to understand or comprehend; unintelligible.
- 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.
- inconvertibility — The condition of being inconvertible.
- incorrigibleness — The quality of being incorrigible; incorrigibility.
- indescribability — (uncountable) The state or characteristic of being indescribable.
- indiscernibility — The state or characteristic of being indiscernible; inability to be observed.
- insufferableness — The state of being insufferable.
- inter-laboratory — a building, part of a building, or other place equipped to conduct scientific experiments, tests, investigations, etc., or to manufacture chemicals, medicines, or the like.
- interbehavioural — relating to or involving interbehaviour
- intercalibration — to determine, check, or rectify the graduation of (any instrument giving quantitative measurements).
- interconvertible — to subject to interconversion; interchange.
- interminableness — The state or condition of being interminable.
- interoperability — capable of being used or operated reciprocally: interoperable weapons systems.
- interpretability — to give or provide the meaning of; explain; explicate; elucidate: to interpret the hidden meaning of a parable.
- invulnerableness — The quality of being invulnerable.
- irrefragableness — The quality or degree of being irrefragable.
- irremediableness — The state or quality of being irremediable.