13-letter words containing f, i, s, c, o
- staff officer — a commissioned officer who is a member of a staff.
- staff section — section (def 10b).
- step function — a function that is constant on each of a finite set of subintervals of its domain, the union of the subintervals being the domain.
- stick out for — If you stick out for something, you keep demanding it and do not accept anything different or less.
- suffocatingly — to kill by preventing the access of air to the blood through the lungs or analogous organs, as gills; strangle.
- sulfonic acid — any of a large group of organic compounds of the structure RSO 2 OH, which are strong acids that give neutral sodium salts: used in the synthesis of phenols, dyes, and other substances.
- surface noise — extraneous noise caused by physical wear or a physical flaw on a phonograph record or in a pickup system, rather than by a flaw in the equipment.
- telescopiform — having body parts which resemble a telescope in that the retract within one another
- testification — the act of testifying or giving testimony.
- testificatory — related to a person who witnesses or an object used as evidence
- tropical fish — any of numerous small, usually brightly colored fishes, indigenous to the tropics, and often kept and bred in home aquariums.
- undiscomfited — not discomfited; at ease
- unofficiously — objectionably aggressive in offering one's unrequested and unwanted services, help, or advice; meddlesome: an officious person.
- versification — the act of versifying.