13-letter words containing m, o, t, r
- amplificatory — of the nature of enlargement or extension, as of a statement, narrative, etc.
- androcentrism — centered on, emphasizing, or dominated by males or masculine interests: an androcentric society; an androcentric religion.
- angiokeratoma — a skin disease characterized by clusters of dilated blood vessels and by thickened skin, forming warty growths, especially on the scrotum, fingers, and toes.
- Ångstrom unit — a unit of length equal to 10 −10 metre, used principally to express the wavelengths of electromagnetic radiations. It is equivalent to 0.1 nanometre
- anharmonicity — (mechanics) Of or pertaining to the deviation of a system from harmonicity (being a harmonic oscillator).
- anisometropia — an imbalance in the power of the two eyes to refract light
- anisometropic — relating to anisometropia
- anthropometer — an instrument that consists of a calibrated, vertical rod to which are attached two horizontal arms, one fixed and one movable, for measuring the human trunk and limbs.
- anthropometry — the comparative study of sizes and proportions of the human body
- anti-monarchy — a state or nation in which the supreme power is actually or nominally lodged in a monarch. Compare absolute monarchy, limited monarchy.
- anti-morality — conformity to the rules of right conduct; moral or virtuous conduct.
- anti-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
- anticlinorium — a vast elongated anticline with its strata further folded into anticlines and synclines
- antiformalist — opposed to formalism
- antilogarithm — a number whose logarithm to a given base is a given number
- antimicrobial — capable of destroying or inhibiting the growth of disease-causing microbes
- antimodernism — modern character, tendencies, or values; adherence to or sympathy with what is modern.
- antimodernist — opposed to modernism
- antireformers — Plural form of antireformer.
- antiterrorism — opposed to or acting against terrorism; counterterrorist
- apogeotropism — negative geotropism, as shown by plant stems
- apoplectiform — of or resembling apoplexy or stroke.
- apportionment — the act of apportioning
- approximately — close to; around; roughly or in the region of
- approximating — Present participle of approximate.
- approximation — An approximation is a fact, object, or description which is similar to something else, but which is not exactly the same.
- approximative — (of a method, description, etc.) giving only an approximation to something.
- araeometrical — relating to araeometry
- archaeometric — relating to archaeometry
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- argumentation — Argumentation is the process of arguing in an organized or logical way, for example in philosophy.
- aristocratism — the principles of aristocrats
- arithmophobia — the fear of numbers
- armor-plating — The armor-plating on a vehicle or building is the hard metal covering that is intended to protect it from gunfire and other missiles.
- armour-plated — An armour-plated vehicle or building has a hard metal covering in order to protect it from gunfire and other missiles.
- aromatization — the conversion of aliphatic or alicyclic compounds to aromatic hydrocarbons.
- astrodynamics — the study of the motion of natural and artificial bodies in space
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atomic energy — nuclear energy
- atomic number — the number of protons in the nucleus of an atom of an element
- atomic theory — any theory in which matter is regarded as consisting of atoms, esp that proposed by John Dalton postulating that elements are composed of atoms that can combine in definite proportions to form compounds
- attested form — a linguistic form that can be shown to be in use or in written records
- autapomorphic — (biology) Describing any characteristic that has evolved in only a single species (or other taxon).
- autoeroticism — the arousal and use of one's own body as a sexual object, as through masturbation
- automatograph — a device for recording involuntary bodily movements.
- autoradiogram — autoradiograph
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- backformation — Alternative spelling of back-formation.
- bankrupt worm — a roundworm (genus Trichostrongylus) that is an intestinal parasite of birds and mammals, especially devastating to young livestock.
- bartholomew i — (Dimitrios Archontonis) born 1940, Archbishop of Constantinople and Ecumenical Patriarch of the Eastern Orthodox Church since 1991.