13-letter words containing s, o, y, a
- synarthrodial — synarthrosis.
- synecdochical — 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.
- synophthalmia — cyclopia.
- syphilization — the act of syphilizing
- syphilophobia — the excessive fear of syphilis
- syringomyelia — a disease of the spinal cord in which the nerve tissue is replaced by a cavity filled with fluid.
- systematology — the science of systems or their formation.
- systemization — systematize.
- take by storm — be a sudden success
- tansy ragwort — a European composite plant, Senecio jacobaea, naturalized in North America, having numerous yellow flowers.
- tapestry moth — carpet moth.
- tautosyllabic — occurring within the same syllable: The (s) and (t) are tautosyllabic in the word disturb, but not in distaste.
- taylor series — an approximation of a given function f at a particular point x, in terms of values of the function and its derivatives at a neighboring point x 0 , by a power series in which the terms are given by f (n) (x 0) (x−x 0) n/n !, where f (n) (x 0) is the derivative of order n evaluated at point x 0 .
- taylor's gold — a variety of pear from New Zealand
- temerariously — in an audacious manner
- testificatory — related to a person who witnesses or an object used as evidence
- tetradynamous — having four long and two short stamens, as a cruciferous flower.
- thalassocracy — dominion over the seas, as in exploration, trade, or colonization.
- the secondary — cornerbacks and safeties collectively
- thomas tallys — Thomas, Tallis, Thomas.
- thoracoplasty — the operation removing selected portions of the ribs to collapse part of the underlying lung or an abnormal pleural space, usually in the treatment of tuberculosis.
- thousand days — the presidential administration of John F. Kennedy, which lasted 1037 days (January 20, 1961, to November 22, 1963).
- thysanopteran — Also, thysanopterous. belonging or pertaining to the insect order Thysanoptera, comprising the thrips.
- thysanopteron — thysanopteran.
- timothy grass — a coarse grass, Phleum pratense, having cylindrical spikes, used as fodder.
- touristically — in a touristic or touristy manner
- tracheophytes — any plant of the former division Tracheophyta, comprising all the vascular plants.
- trachycarpous — having rough-skinned fruit.
- tract society — a society that publishes and distributes religious pamphlets.
- transboundary — something that indicates bounds or limits; a limiting or bounding line.
- transitionary — movement, passage, or change from one position, state, stage, subject, concept, etc., to another; change: the transition from adolescence to adulthood.
- transmisogyny — discrimination or prejudice against transgender women.
- transportedly — in a passionate or rapturous manner
- traumatonasty — a nastic movement in response to an injury
- treacherously — characterized by faithlessness or readiness to betray trust; traitorous.
- treasury bond — any of various interest-bearing bonds issued by the U.S. Treasury Department, usually maturing over a long period of time.
- treasury note — a note or bill issued by the U.S. Department of the Treasury, receivable as legal tender for all debts except as otherwise expressly provided.
- trust company — a company or corporation organized to exercise the functions of a trustee, but usually engaging also in other banking and financial activities.
- tympanoplasty — reconstruction of the eardrum and the bones of the middle ear.
- tyrannosaurus — any large carnivorous bipedal dinosaur of the genus Tyrannosaurus, common in North America in upper Jurassic and Cretaceous times: suborder Theropoda (theropods)
- ultraroyalist — a supporter or adherent of a king or royal government, especially in times of rebellion or civil war.
- unambiguously — plainly, clearly
- unambitiously — in an unambitious manner
- uncustomarily — according to or depending on custom; usual; habitual.
- unfashionably — in an unfashionable manner
- unforeseeably — to have prescience of; to know in advance; foreknow.
- unmaliciously — not in a malicious manner
- vaginomycosis — a fungous infection of the vagina.
- variety store — a retail store, as a five-and-ten, carrying a large variety of goods, especially low-priced articles.
- vasovasostomy — the reversal of a vasectomy, performed by surgical reconnection of the severed ends of the vas deferens.