13-letter words containing a, l, r, g
- modula-prolog — Adds a Prolog layer to Modula-2. "Modula-Prolog: A Software Development Tool", C. Muller IEEE Software pp.39-45 (Nov 1986).
- molding board — a board upon which bread is kneaded, cookies prepared, etc.
- molly maguire — Irish History. a member of a secret terrorist society organized in Ireland in 1843 to prevent evictions by the government: so called because the members disguised themselves as women.
- mood-altering — (especially of drugs) capable of changing one's emotional state.
- morgan le fay — the fairy sister of King Arthur.
- morphological — the branch of biology dealing with the form and structure of organisms.
- morse signals — signals encoded using the Morse Code
- multicategory — (mathematics) A generalization of the concept of category that allows morphisms of multiple arity.
- multigravidas — Plural form of multigravida.
- multiorgasmic — Capable of multiple orgasms without a refractory period.
- multiregional — of, relating to or involving several regions
- multitracking — the process of recording separate audio tracks for later mixing into a single audio track.
- myringoplasty — (surgery) The closure of the perforation of pars tensa of the tympanic membrane.
- nailing strip — a strip of wood or other partly yielding material attached to a hard surface, as of steel or concrete, so that objects may be nailed to the surface.
- narratologist — a person who studies narratology; an expert in narratology
- nathan glazer — Nathan, born 1923, U.S. sociologist.
- national grid — a network of high-voltage power lines connecting major power stations
- natural right — any right that exists by virtue of natural law.
- nearsightedly — In a nearsighted manner; as if nearsighted; myopically.
- nephrological — of or relating to nephrology
- neurosurgical — Of, or pertaining to neurosurgery.
- never-failing — that does not fail ever; unfailing
- new englander — an area in the NE United States, including the states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont.
- niagara falls — the falls of the Niagara River: in Canada, the Horseshoe Falls, 158 feet (48 meters) high; 2600 feet (792 meters) wide; in the U.S., American Falls, 167 feet (51 meters) high; 1000 feet (305 meters) wide.
- niggardliness — The state of being niggardly.
- night crawler — an earthworm.
- nightcrawlers — Plural form of nightcrawler.
- nightmarishly — In a nightmarish manner.
- nitrogelatine — an explosive, consisting mainly of nitroglycerine, that is used in the production of gelignite
- nominal group — A nominal group is the same as a noun group.
- non-frangible — easily broken; breakable: Most frangible toys are not suitable for young children.
- nonallergenic — not causing an allergic reaction: nonallergenic cosmetics.
- nondegradable — not subject to or capable of degradation or decomposition: nondegradable waste.
- nonliturgical — Not liturgical.
- nonmanagerial — pertaining to management or a manager: managerial functions; the managerial class of society.
- nonobligatory — Not obligatory; not required; optional.
- nonregulation — not regulation, not conforming to accepted standards
- numerological — Of, pertaining to, or based on numerology.
- objurgatively — In an objurgative or reproving manner.
- oil hardening — to quench (steel) in a bath of oil.
- old bulgarian — the Bulgarian language of the Middle Ages.
- old norwegian — the language of Norway as spoken and written from the middle of the 12th to the end of the 14th centuries.
- olduvai gorge — a gorge in Tanzania in which is located a site containing Australopithecine and human skeletal and cultural remains.
- oleomargarine — margarine.
- open learning — a system of further education on a flexible part-time basis
- opera glasses — small binoculars
- organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.
- organ-builder — a maker of organs
- organolithium — (organic chemistry) Describing any organic compound containing a carbon to lithium bond.
- organosilicon — pertaining to or noting an organic compound containing silicon, especially where attached directly to a carbon atom.