13-letter words containing no
- semi-nomadism — a member of a people or tribe that has no permanent abode but moves about from place to place, usually seasonally and often following a traditional route or circuit according to the state of the pasturage or food supply.
- seminole wars — a series of conflicts in 1818–19 between American forces under Andrew Jackson and the Seminole Indians in Spanish-controlled eastern Florida.
- sensible note — the major seventh note of any scale
- senza sordino — a musical direction to remove or play without the mute or (on the piano) with the sustaining pedal pressed down
- serodiagnosis — a diagnosis involving tests on blood serum or other serous fluid of the body.
- serpiginously — in a serpiginous manner; in the manner characteristic of serpigo
- shoulder knot — a knot of ribbon or lace worn on the shoulder, as by men of fashion in the 17th and 18th centuries, by servants in livery, or by women or children.
- siege economy — an economy in which the export of capital is limited and import controls are imposed
- sindonologist — a student of sindonology
- singular noun — A singular noun is a noun such as 'standstill' or 'vicinity' that does not have a plural form and always has a determiner such as 'a' or 'the' in front of it.
- sino-japanese — having to do with both China and Japan
- skeletogenous — forming a skeleton, or parts of one
- snooze button — a button on an alarm clock that, if pressed when the alarm is going off, will suspend its ringing for a brief time before allowing it to go off again
- snowball bush — guelder rose.
- snowball tree — any of several caprifoliaceous shrubs of the genus Viburnum, esp V. opulus var. roseum, a sterile cultivated variety with spherical clusters of white or pinkish flowers
- snowshoe hare — a large-footed North American hare, Lepus americanus, that is white in winter and dark brown in summer.
- socioeconomic — of, relating to, or signifying the combination or interaction of social and economic factors: socioeconomic study; socioeconomic status.
- souphanouvong — Prince, 1909–1995, Laotian political leader: president 1975–86 (half brother of Prince Souvanna Phouma).
- spectinomycin — an antibiotic drug, C 1 4 H 2 4 N 2 O 7 , produced by the actinomycete Streptomyces spectabilis, used in the treatment of susceptible gonorrhea.
- sphagnologist — a person who studies sphagna
- sphenoid bone — the large butterfly-shaped compound bone at the base of the skull, containing a protective depression for the pituitary gland
- splanchnocele — a primitive embryonic body cavity
- splanchnology — the visceral system
- steganography — the practice of concealing messages in such a way that only the sender and the recipient know that there is a message
- steganopodous — belonging to the Stegandopodes or having all four toes webbed together
- stenopetalous — having narrow petals.
- stenophyllous — having narrow leaves.
- stereognostic — the ability to determine the shape and weight of an object by touching or lifting it.
- stratovolcano — a large, steep volcano built up of alternating layers of lava and ash or cinders.
- subbituminous — (of coal) dark brown to black and intermediate in rank between lignite and bituminous
- 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.
- surfer's knot — a tumorlike nodule below a surfer's knee or on the upper area of the foot, caused by pressure on the skin and tissue exerted by the surfboard.
- synchronology — combined chronology
- synchronously — occurring at the same time; coinciding in time; contemporaneous; simultaneous.
- synodic month — Also called calendar month. any of the twelve parts, as January or February, into which the calendar year is divided.
- synophthalmia — cyclopia.
- tautochronous — having the character of a tautochrone
- taxonomically — the science or technique of classification.
- techno-babble — technical jargon relating to computing and other technological subjects
- technological — of or relating to technology; relating to science and industry.
- technologised — to make technological; to modernize or modify with technology.
- technologized — to make technological; to modernize or modify with technology.
- technopolitan — of or relating to a place or society dominated by technology
- telediagnosis — the detection of a disease by evaluating data transmitted to a receiving station from instruments monitoring a distant patient, as someone in a spacecraft.
- tenosynovitis — inflammation of a tendon sheath, as from trauma, repeated strain, or systemic disease.
- tenovaginitis — the inflammation of the sheath around a tendon
- that's enough — You say 'that's enough' to tell someone, especially a child, to stop behaving in a silly, noisy, or unpleasant way.
- the far north — the Arctic and sub-Arctic regions of the world
- the noble art — boxing
- the northeast — any area lying in or towards this direction