20-letter words containing u, n, b, o, a
- spontaneous-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
- standard book number — International Standard Book Number. Abbreviation: SBN.
- subpoena duces tecum — a writ directing a person to appear in court and to bring some document described in the writ.
- subscription library — a commercial lending library
- tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
- therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
- to bear the brunt of — To bear the brunt or take the brunt of something unpleasant means to suffer the main part or force of it.
- to bring up the rear — If a person or vehicle is bringing up the rear, they are the last person or vehicle in a moving line of them.
- to burst into flames — If something bursts into flames or bursts into flame, it suddenly starts burning strongly.
- to get your bearings — to find out where one is or to find out what one should do next
- to get your own back — If you get your own back on someone, you have your revenge on them because of something bad that they have done to you.
- to keep your balance — If you keep your balance, for example, when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
- tropical disturbance — a very weak, or incipient, tropical cyclone.
- upper income bracket — a grouping of the highest earning tax payers
- war production board — the board (1942–45) that supervised and regulated the production and sale of matériel essential to the logistics of World War II. Abbreviation: WPB, W.P.B.
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- wilson cloud chamber — cloud chamber.