17-letter words containing y, r

the varsity match — a sporting fixture between Oxford and Cambridge university rugby teams
theory of numbers — number theory.
thermoelectricity — electricity generated by heat or temperature difference, as in a thermocouple.
thermoperiodicity — the effect on an organism of rhythmic fluctuations in temperature.
thirty years' war — the war, often regarded as a series of wars (1618–48), in central Europe, initially involving a conflict between German Protestants and Catholics and later including political rivalries with France, Sweden, and Denmark opposing the Holy Roman Empire and Spain.
thistle butterfly — any nymphalid butterfly of the genus Vanessa, as the red admiral or painted lady.
three-day eventer — a rider or horse that takes part in three-day eventing
to drag your feet — If you drag your feet or drag your heels, you delay doing something or do it very slowly because you do not want to do it.
to feel your oats — to feel exuberant or high-spirited
to keep your head — If you keep your head, you remain calm in a difficult situation. If you lose your head, you panic or do not remain calm in a difficult situation.
to knit your brow — If you knit your brows or knit your eyebrows, you frown because you are angry or worried.
to lick your lips — If you lick your lips, you move your tongue across your lips as you think about or taste something pleasant.
to lose your grip — If you lose your grip, you become less efficient and less confident, and less able to deal with things.
to lose your mind — If you say that someone is losing their mind, you mean that they are becoming mad.
to open your eyes — If something opens your eyes, it makes you aware that something is different from the way that you thought it was.
to open your mind — If something opens your mind to new ideas or experiences, it makes you more willing to accept them or try them.
to play it by ear — If you play it by ear, you decide what to say or do in a situation by responding to events rather than by following a plan which you have decided on in advance.
to play with fire — If you say that someone is playing with fire, you mean that they are doing something dangerous that may result in great harm for them and cause many problems.
to push your luck — If you say that someone is pushing their luck, you think they are taking a bigger risk than is sensible, and may get into trouble.
to risk your neck — If you say that someone is risking their neck, you mean they are doing something very dangerous, often in order to achieve something.
to show your face — If you show your face somewhere, you go there and see people, although you are not welcome, are rather unwilling to go, or have not been there for some time.
to slip your mind — If something slips your mind, you forget it.
to take your time — If you take your time doing something, you do it quite slowly and do not hurry.
tolpuddle martyrs — six farm workers sentenced to transportation for seven years in 1834 for administering an unlawful oath to form a trade union in the village of Tolpuddle, Dorset
top-security wing — a wing of a prison, mental hospital, etc that has a very high level of precautions against escape
tourette syndrome — a neurological disorder characterized by recurrent involuntary movements, including multiple neck jerks and sometimes vocal tics, as grunts, barks, or words, especially obscenities.
trackless trolley — trolley bus.
transatlantically — crossing or reaching across the Atlantic: a transatlantic liner.
transitory action — an action that can be brought in any country regardless of where it originated
trichloroethylene — a colorless, poisonous liquid, C 2 HCl 3 , used chiefly as a degreasing agent for metals and as a solvent, especially in dry cleaning, for fats, oils, and waxes. Abbreviation: TCE.
trick photography — photography that creates an illusion
tridimensionality — having three dimensions.
troilus butterfly — spicebush swallowtail.
try one's hand at — to attempt (to do something), esp. for the first time
turbidity current — a turbid, dense current of sediments in suspension moving along the slope and bottom of a lake or ocean.
turner's syndrome — an abnormal congenital condition resulting from a defect on or absence of the second sex chromosome, characterized by retarded growth of the gonads.
twenty four seven — continually; constantly: They're together 24/7.
twenty-four hours — the time taken by the Earth to make a complete rotation on its axis; a whole day
twenty-four seven — continually; constantly: They're together 24/7.
twenty-four-seven — continually; constantly: They're together 24/7.
tympanic membrane — eardrum.
tyrant flycatcher — flycatcher (def 2).
uncomprehendingly — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
unconformity trap — An unconformity trap is a hydrocarbon trap where the closure is made by an unconformity (= a formation of rock layers which represents a gap in the geological record).
understandability — capable of being understood; comprehensible.
undulatory theory — wave theory (def 1).
unemployment rate — percentage of population without jobs
unify corporation — (company) Developers of the Unify relational database. At one time, before Sybase, they were a competitor of Oracle, et al.
unitary authority — (in the United Kingdom) a district administered by a single tier of local government, esp those districts of England that became administratively independent of the county councils in 1996–98
unity of interest — the equal interest in property held by joint tenants

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