16-letter words containing a, l, b
- gibberellic acid — a gibberellin C 18 H 21 O 4 COOH, produced as a metabolite by the fungus Gibberella fujikuroi, used as a stimulator of plant growth.
- gingerbread palm — doom palm.
- gingerbread plum — a tree, Neocarya macrophylla, of western Africa, bearing a large, edible, starchy fruit.
- global community — the people or nations of the world, considered as being closely connected by modern telecommunications and as being economically, socially, and politically interdependent
- globigerina ooze — a calcareous deposit occurring upon ocean beds and consisting mainly of the shells of dead foraminifers, especially globigerina.
- globular cluster — a comparatively older, spherically symmetrical, compact group of up to a million old stars, held together by mutual gravitation, that are located in the galactic halo and move in giant and highly eccentric orbits around the galactic center.
- go out on a limb — say sth daring
- 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
- gulf of martaban — an inlet of the Bay of Bengal in Myanmar
- gulf of san blas — an inlet of the Caribbean on the N coast of Panama
- half-blind joint — a corner dovetail joint visible on one face only.
- 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.
- himalayan balsam — a tall flowering plant, Impatiens glandulifera, brought from Asia to Europe as a garden plant but now growing wild in Europe, especially on river banks. It is considered invasive and environmentally damaging.
- hit a brick wall — unable to continue or make progress because of a hindrance
- 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.
- impracticability — The quality or condition of being impracticable.
- 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.