16-letter words containing i, l, y, r, a
- ability grouping — a system whereby students are separated into different groups or classes according to test scores or relative scholastic ability, as to assure that gifted students are not inhibited by slower learners.
- abruptly pinnate — paripinnate.
- abscission layer — a layer of parenchyma cells that is formed at the bases of fruits, flowers, and leaves before abscission. As the parenchyma disintegrates, the organ becomes separated from the plant
- acetyl promazine — acepromazine
- acetylene series — a group of similar hydrocarbons
- acrylic painting — a painting done with pigments in a solution of an acrylic resin: it dries quickly with a brilliance and depth comparable to those of both watercolor and oil paints
- addition polymer — a polymer formed by the direct reaction of two or more monomers, and with no resulting water or other by-product.
- administratively — pertaining to administration; executive: administrative ability.
- alimentary canal — The alimentary canal in a person or animal is the passage in their body through which food passes from their mouth to their anus.
- alphanumerically — In an alphanumeric manner; using alphanumeric characters.
- alpine bearberry — a related species, A. alpina of European mountains, having black berries
- amaryllis family — the plant family Amaryllidaceae, typified by herbaceous plants having alternate or basal lance-shaped leaves, bulbs or corms, and showy, lilylike flowers and including the amaryllis, daffodil, onion and its relatives, and snowdrop.
- anagrammatically — In an anagrammatic manner.
- analytical entry — a bibliographic record of part of an item for which a comprehensive bibliographic record has been made, as a single play or essay in an anthology, a subject in a comprehensive work, or a part of a multivolume set of books.
- angiographically — By the use of angiography.
- angular velocity — the velocity of a body rotating about a specified axis measured as the rate of change of the angle subtended at that axis by the path of the body
- animal husbandry — the science of breeding, rearing, and caring for farm animals
- animal sanctuary — a place where animals are brought to live and be protected
- anomalistic year — the interval between two successive passages of the earth through perihelion; 365.25964 mean solar days
- antiinflammatory — Alternative spelling of anti-inflammatory.
- april fool's day — April Fool's Day is the 1st of April, the day on which people traditionally play tricks on each other.
- april fools' day — April 1, a day when practical jokes or tricks are played on unsuspecting people.
- archaeologically — In an archaeological manner.
- aristocratically — In an aristocratic manner.
- armed neutrality — military preparedness without commitment, especially as the expressed policy of a neutral nation in wartime; readiness to counter with force an invasion of rights by any belligerent power.
- armillary sphere — a model of the celestial sphere consisting of rings representing the relative positions of the celestial equator, ecliptic, etc, used by early astronomers for determining the positions of stars
- arteriocapillary — Relating to the arteries and the capillaries.
- arthroscopically — By means of arthroscopy.
- assembly routine — assembler (def 2a).
- at liberty to do — If someone is at liberty to do something, they have been given permission to do it.
- auditory vesicle — the pouch that is formed by the invagination of an ectodermal placode and that develops into the internal ear.
- autoregressively — In an autoregressive manner.
- auxiliary police — a part-time reserve attached to a regular police force
- auxiliary rafter — a rafter reinforcing a principal rafter.
- baltimore canyon — a submarine valley cut into the continental shelf and slope seaward of Chesapeake Bay.
- basic vocabulary — the set of lexical items in a language that are most resistant to replacement, referring to the most common and universal elements of human experience, such as parts of the body (foot, eye), universal features of the environment (water, star), common activities (eat, sleep), and the lowest numerals.
- bidirectionality — capable of reacting or functioning in two, usually opposite, directions.
- biliary calculus — an abnormal stonelike mass, usually of cholesterol, formed in the gallbladder or bile passages.
- billy goat beard — a man's beard that is long under the chin and shaved elsewhere
- binuclear family — a social unit composed of an extended family, usually the children and subsequent spouses of divorced parents.
- biodegradability — capable of decaying through the action of living organisms: biodegradable paper; biodegradable detergent.
- bird's-eye maple — a cut of sugar maple wood used especially for veneers, having a wavy grain with many dark, circular markings.
- birthwort family — the plant family Aristolochiaceae, typified by mostly tropical woody vines and herbaceous plants, having alternate, heart-shaped leaves and flowers lacking true petals but having three petallike sepals, and including the birthwort, Dutchman's-pipe, and wild ginger.
- bright and early — very early in the morning
- brittany spaniel — a short-tailed French bird dog that typically has a smooth orange- or liver-and-white coat
- broomrape family — the plant family Orobanchaceae, characterized by scaly, leafless herbaceous plants that are parasitic on the roots of other plants and have irregular flowers and many-seeded capsular fruit, and including beechdrops, broomrape, and squawroot.
- buckthorn family — the plant family Rhamnaceae, characterized by shrubs and trees having alternate, simple leaves, clusters of small flowers, and fruit in the form of a drupe or capsule, and including the buckthorn, cascara, and New Jersey tea.
- bunker mentality — a defensive attitude in which others are seen as hostile or potentially hostile
- bureaucratically — of, relating to, or characteristic of a bureaucrat or a bureaucracy; arbitrary and routine.
- burkitt lymphoma — a rare type of tumour of the white blood cells, occurring mainly in Africa and associated with infection by Epstein-Barr virus
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