15-letter words containing si
- moccasin flower — the lady's-slipper.
- molecular sieve — a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.
- monkey business — frivolous or mischievous behavior.
- monovision lens — Ophthalmology. one of a pair of contact lenses that adjust one eye for farsightedness and the other for nearsightedness, used as an alternative to bifocal lenses.
- motion sickness — a feeling of nausea and dizziness, sometimes accompanied by vomiting, resulting from stimulation by motion of the semicircular canals of the ear during travel by car, plane, etc.
- moving sidewalk — a moving surface, similar to a conveyor belt, for carrying pedestrians.
- multidivisional — Of or pertaining to more than one division.
- multiprocessing — the simultaneous execution of two or more programs or instruction sequences by separate CPUs under integrated control.
- musical evening — a social evening with a musical programme
- musical statues — a children's party game in which players run around while music is played. Whenever the music stops, the players have to stand motionless. Anyone who moves is out
- nearsightedness — seeing distinctly at a short distance only; myopic.
- necessitousness — The state or condition of impoverishment; material need, especially of an urgent nature.
- necrobacillosis — any disease of cattle, horses, sheep, and swine marked by necrotic areas in which a bacillus, Fusobacterium necrophorum, is found.
- nephrolithiasis — (pathology) presence of calculi in kidneys.
- nephrosclerosis — (pathology) arteriosclerosis of the renal arteries.
- neurodepressive — (of a drug) depressing nerve-cell function.
- neurohypophysis — See under pituitary gland.
- neurophysiology — the branch of physiology dealing with the functions of the nervous system.
- neuroprosthesis — A prosthesis used to improve the function of an impaired nervous system.
- neutral density — black, white, or a shade of grey; a colourless tone
- no smoking sign — A no smoking sign in a place is a notice to say that smoking is forbidden in that place.
- nominal aphasia — aphasia in which the primary symptom is an inability to recall or recognize the names of objects
- non-acquisitive — tending or seeking to acquire and own, often greedily; eager to get wealth, possessions, etc.: our acquisitive impulses; acquisitive societies.
- non-compression — the act of compressing.
- non-consignment — the act of consigning.
- non-falsifiable — to make false or incorrect, especially so as to deceive: to falsify income-tax reports.
- non-feasibility — capable of being done, effected, or accomplished: a feasible plan.
- non-necessities — something necessary or indispensable: food, shelter, and other necessities of life.
- non-residential — of or relating to residence or to residences: a residential requirement for a doctorate.
- non-responsible — answerable or accountable, as for something within one's power, control, or management (often followed by to or for): He is responsible to the president for his decisions.
- non-sensitizing — to render sensitive.
- nonclassicality — The condition of being nonclassical.
- noncommissioned — not commissioned, applied especially to military officers, as sergeants and corporals, ranking below warrant officer.
- noncompressible — not able to be compressed
- noninvasiveness — The characteristic of being noninvasive.
- nonprofessional — not a member of or trained in a specific profession.
- nonsensicalness — Nonsensicality.
- nonsimultaneous — existing, occurring, or operating at the same time; concurrent: simultaneous movements; simultaneous translation.
- north caucasian — a language family including all the Caucasian languages north of the Caucasian divide, as Kabardian and the Circassian language proper, and a few between the divide and the Black Sea, as Abkhazian.
- nuclear fission — fission (def 2).
- nuclear physics — the branch of physics that deals with the behavior, structure, and component parts of atomic nuclei.
- nucleosynthesis — the formation of new atomic nuclei by nuclear reactions, thought to occur in the interiors of stars and in the early stages of development of the universe.
- null hypothesis — (in the statistical testing of a hypothesis) the hypothesis to be tested.
- nursing studies — the study of nursing
- obsidian dating — a method of dating obsidian artifacts or debitage by calculating how long it has taken to produce a given thickness of a hydration layer within such matter.
- obsidional coin — siege piece.
- oil of the sick — holy oil used in the sacrament of extreme unction.
- old age pension — An old age pension is a regular amount of money that people receive from the government when they have retired from work.
- one-dimensional — having one dimension only.
- onomasiological — the study of the means of expressing a given concept.