16-letter words containing l, b, e, a
- 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.
- hayes-compatible — (communications) A description of a modem which understands the same set of commands as one made by Hayes.
- 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.
- hemangioblastoma — (medicine) Any of several benign neoplasm tumours of the brain.
- hendecasyllables — Plural form of hendecasyllable.
- 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.
- humanly possible — feasible, practical
- 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.
- hyperreal number — any of the set of numbers formed by the addition of infinite numbers and infinitesimal numbers to the set of real numbers
- 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.
- imperfectability — The quality of not being perfectable; of being forever imperfect.
- imperishableness — The characteristic or property of being imperishable.
- imperturbability — incapable of being upset or agitated; not easily excited; calm: imperturbable composure.
- inaccessibleness — The quality or state of being inaccessible or unreachable.
- inapplicableness — The state or quality of being inapplicable; inapplicability.
- incommensurables — Plural form of incommensurable.
- inconceivability — (uncountable) The quality of being inconceivable.
- inconsolableness — The quality of being inconsolable.
- incontestability — incapable of being contested; not open to dispute; incontrovertible: incontestable proof.
- incontravertable — Misspelling of incontrovertible.
- indefatigability — incapable of being tired out; not yielding to fatigue; untiring.
- indescribability — (uncountable) The state or characteristic of being indescribable.
- indispensability — absolutely necessary, essential, or requisite: an indispensable member of the staff.
- indisputableness — The property of being indisputable.
- inexhaustibility — not exhaustible; incapable of being depleted: an inexhaustible supply.
- inexplicableness — The state of being difficult to account for; the state of being inexplicable.
- inextinguishable — not extinguishable: an inextinguishable fire.
- inextinguishably — In a way that cannot be extinguished; immortally.
- inhospitableness — The quality of being inhospitable.
- instability line — a nonfrontal line of convective activity in the atmosphere, usually several hundred miles long but of relatively brief duration.
- 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).
- 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.
- invisible assets — assets that are not physical, such as services or good will
- invisible shadow — (in architectural shades and shadows) a three-dimensional space occupied by the shadow projected by a solid and within which a surface is in shadow.
- invulnerableness — The quality of being invulnerable.
- irrefragableness — The quality or degree of being irrefragable.