13-letter words containing o, i, l, s, a
- normalisation — Alternative form of normalization.
- north sea oil — oil extracted from deposits beneath the North Sea
- norwalk virus — a norovirus.
- nosologically — In terms of nosology.
- nostalgically — experiencing or exhibiting nostalgia, a sentimental or wistful yearning for the happiness felt in a former place, time, or situation.
- nucleocapsids — Plural form of nucleocapsid.
- nucleoplasmic — Of or pertaining to nucleoplasm.
- numismatology — Numismatics.
- observability — capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude.
- observational — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obsessionally — In an obsessional manner.
- obstetrically — (medicine) In terms of obstetrics.
- occasionalism — a theory that there is no natural interaction between mind and matter, but that God makes mental events correspond to physical perceptions and actions.
- occasionalist — a person who subscribes to the theory of occasionalism
- occasionality — the condition or character of being infrequent or intended for a specific occasion, or that which is infrequent or intended for a specific occasion
- occassionally — Misspelling of occasionally.
- occidentalism — Occidental character or characteristics.
- odontoblastic — Relating to odontoblasts.
- off the rails — into or in a state of dysfunction or disorder
- oil-based mud — Oil-based mud is a drilling fluid that is an emulsion containing oil as the base fluid.
- oilspot glaze — a brown or black ceramic glaze dotted with silvery spots caused by impurities.
- old ritualist — Raskolnik.
- old-fashioned — of a style or kind that is no longer in vogue: an old-fashioned bathing suit.
- olfactologist — a medical specialist in the sense of smell
- oligosiloxane — (organic chemistry) Any polysiloxane having a relatively small number of -Si-O- groups.
- olympic games — international sports event
- onanistically — In an onanistic manner.
- onomastically — In an onomastic way.
- onomatologist — One versed in the history of names.
- optical glass — any of several types of high-quality, homogeneous, color-free glass, as flint or crown glass, having specified refractive properties, used in lenses and other components of optical systems.
- optical mouse — (hardware) Any kind of mouse that uses visible light or infrared to detect changes in its position.
- optical sound — sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack.
- oral solution — An oral solution is a medicine in liquid form for drinking.
- orchestralist — a person who writes or arranges orchestral music
- ordinal scale — a scale on which data is shown simply in order of magnitude since there is no standard of measurement of differences: for instance, a squash ladder is an ordinal scale since one can say only that one person is better than another, but not by how much
- ordinary loss — An ordinary loss is a loss in the course of normal business.
- 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.
- organosilicon — pertaining to or noting an organic compound containing silicon, especially where attached directly to a carbon atom.
- orgiastically — In an orgiastic fashion.
- originalities — Plural form of originality.
- orismological — relating to orismology
- ornamentalism — the desire or tendency to feature ornament in the design of buildings, interiors, furnishings, etc.
- ornamentalist — A person who ornaments.
- orsellic acid — an acid found in lichens
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthosilicate — a silicate mineral
- oscillational — characterized by oscillation
- oscillographs — Plural form of oscillograph.
- oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
- osteoplasties — Plural form of osteoplasty.