15-letter words containing s, o, y, l
- symptomological — relating to symptomology
- synecdochically — a figure of speech in which a part is used for the whole or the whole for a part, the special for the general or the general for the special, as in ten sail for ten ships or a Croesus for a rich man.
- tantalus monkey — a long-tailed African monkey, Cercopithecus tantalus (or C. aethiops tantalus), of central African grasslands, having a long face framed by upswept whiskers.
- taylor's series — an infinite sum giving the value of a function f(z) in the neighbourhood of a point a in terms of the derivatives of the function evaluated at a. Under certain conditions, the series has the form f(z) = f(a) + [f′(a)(z – a)]/1! + [f″(a)(z – a)2]/2! + …
- tensor analysis — the branch of mathematics dealing with the calculus of tensors, especially the study of properties that are unaffected by a change of coordinate system.
- thalassotherapy — the use of sea water and marine products as a therapeutic treatment
- the early hours — If something happens in the early hours, in the small hours, or in the wee hours, it happens in the early morning after midnight.
- to play footsie — If someone plays footsie with you, they touch your feet with their own feet, for example under a table, often as a playful way of expressing their romantic or sexual feelings towards you.
- transactionally — the act of transacting or the fact of being transacted.
- translationally — in a manner which uses translation
- transnationally — going beyond national boundaries or interests: a transnational economy.
- traveller's joy — a ranunculaceous Old World climbing plant, Clematis vitalba, having white flowers and heads of feathery plumed fruits
- tricotyledonous — having three cotyledons.
- tutorial system — a system of education, especially in some colleges, in which instruction is given personally by tutors, who also act as general advisers of a small group of students in their charge.
- tyrwhitt-wilson — Gerald Hugh, 14th Baron Berners [bur-nerz] /ˈbɜr nərz/ (Show IPA), 1883–1950, English composer, painter, and author.
- ultramicroscopy — the use of the ultramicroscope.
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- un-fortuitously — happening or produced by chance; accidental: a fortuitous encounter.
- unadventurously — in an unadventurous manner
- unapostolically — in an unapostalic manner
- unceremoniously — discourteously abrupt; hasty; rude: He made an unceremonious departure in the middle of my speech.
- uncomplaisantly — in an uncomplaisant manner
- unconstrainedly — in an unconfined manner
- unpretentiously — without pretension
- unprogressively — in an unprogressive manner
- unquestioningly — in manner that accepts something without expressing doubt or uncertainty
- untrustworthily — in an untrustworthy manner; not trustworthily
- urban sociology — the sociological study of cities and their role in the development of society.
- vector analysis — the branch of calculus that deals with vectors and processes involving vectors.
- violinistically — in a violinistic manner
- voyeuristically — of, relating to, or characteristic of a voyeur or of voyeurism.
- washington lily — a lily, Lilium washingtonianum, of the western coast of the U.S., having whorled leaves and fragrant, purple-spotted white flowers.
- winter holidays — a period of rest from work or studies taken in winter
- wolf-rayet star — a very hot (35,000–100,000 K) and luminous star in the early stages of evolution, with broad emission lines in its spectrum.
- yellow goatfish — a schooling goatfish, Mulloidichthys martinicus, inhabiting the Atlantic Ocean from Florida to Panama.
- yin-yang school — a school of ancient Chinese philosophers who interpreted history in terms of the influence of the seasons and of five elements: earth, wood, metal, fire, and water.
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.
- yorkshire dales — the valleys of the rivers flowing from the Pennines in W Yorkshire: chiefly Ribblesdale, Swaledale, Nidderdale, Wharfedale, and Wensleydale; tourist area
- yosemite valley — a glacial valley in Yosemite National Park in central California, in the Sierra Nevada Mountains. It has an altitude of about 1200 m (4000 ft), with sheer walls rising about another 1200 m (4000 ft).
- young's modulus — a coefficient of elasticity of a substance, expressing the ratio between a stress that acts to change the length of a body and the fractional change in length caused by this force.
- zoophysiologist — an expert in zoophysiology
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.