13-letter words containing r, o, m
- 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
- any number of — several or many
- anywhere from — any quantity, time, degree, etc, above a specified limit
- 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.
- aqueous humor — a watery fluid in the space between the cornea and the lens of the eye
- 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
- armed robbery — a robbery that is carried out by people carrying guns
- 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.
- armored cable — an electric cable having a metal protective covering
- armored scale — any of a family (Diaspididae) of scale insects characterized by a hard, waxy secretion that covers the body: many armored scales are serious pests of trees and shrubs
- armour-bearer — a retainer who carried the arms or armour of a warrior
- 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.
- assembly room — a room used as a public place of entertainment, usually dating from the eighteenth or nineteenth century
- 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
- audience room — a room for holding formal interviews or hearings.
- aum shinrikyo — a syncretistic Japanese cult combining elements of Buddhism, Hinduism, and Christianity, founded by Shoko Asahara in 1986; responsible for a number of murders and in particular a nerve-gas attack on the Tokyo underground in 1995
- 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
- baal merodach — Marduk.
- baby primrose — a tender primrose, Primula forbesii, native to China and Burma, having white, hairy leaves and rose- or lilac-colored flowers with a yellow center.
- backformation — Alternative spelling of back-formation.
- balloon frame — a wooden building frame composed of machine-sawed scantlings fastened with nails, having studs rising the full height of the frame with the joists nailed to the studs and supported by sills or by ribbons let into the studs.
- balsam poplar — a poplar tree, Populus balsamifera, of NE North America, having resinous buds and broad heart-shaped leaves
- balsamiferous — yielding or producing balsam
- bankrupt worm — a roundworm (genus Trichostrongylus) that is an intestinal parasite of birds and mammals, especially devastating to young livestock.