17-letter words containing r, i, b, o, n, u
- nicholas bourbaki — the pseudonym of a group of mainly French mathematicians that, since 1939, has been producing a monumental work on advanced mathematics, Eléments de Mathématique
- non-reimbursement — to make repayment to for expense or loss incurred: The insurance company reimbursed him for his losses in the fire.
- non-subordination — the act of placing in a lower rank or position: The refusal to allow women to be educated was part of society's subordination of women to men.
- number eight iron — a club with an iron head the face of which has more slope than a pitcher but less slope than a niblick.
- number seven iron — pitcher2 (def 3).
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- on-the-job injury — On-the-job injury is bodily harm that is caused while you are doing your job.
- order of business — a task assigned or to be dealt with: Our first order of business is to reduce expenses.
- percussion bullet — a bullet that is exploded by percussion
- polyvinyl butyral — a white, water-insoluble, polyvinyl acetal made with butyraldehyde, used chiefly as an interlayer in the manufacture of safety glass.
- production number — a specialty number or routine, usually performed by the entire cast consisting of musicians, singers, dancers, stars, etc., of a musical comedy, vaudeville show, or the like.
- redistributionist — a person who believes in, advocates, or supports income redistribution.
- reflection nebula — a cloud of interstellar gas and dust that reflects the light of neighboring stars.
- republic of china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- republic of yemen — Republic of, a country in S Arabia, formed in 1990 by the merger of the Yemen Arab Republic and the People's Democratic Republic of Yemen. 207,000 sq. mi. (536,130 sq. km). Capital: Aden.
- republic-of-china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- ribonucleoprotein — a substance composed of RNA in close association with protein; a nucleoprotein containing RNA. Abbreviation: RNP.
- rubber plantation — an estate in a tropical country where rubber trees are grown on a large scale
- saint bonaventure — Saint ("the Seraphic Doctor") 1221–74, Italian scholastic theologian.
- squash vine borer — the larva of a clearwing moth, Melittia satyriniformis, that bores into the stems of squash and related plants.
- subclavian groove — either of two grooves in the first rib, one for the main artery (subclavian artery) and the other for the main vein (subclavian vein) of the arm
- subordinated debt — a debt that an unsecured creditor can only claim, in the event of a liquidation, after the claims of secured creditors have been paid
- subscription rate — the price charged for a subscription
- surrender to bail — to present oneself at court at the appointed time after having been on bail
- suspension bridge — a bridge having a deck suspended from cables anchored at their extremities and usually raised on towers.
- synchronous orbit — an orbit in which the orbital period of a satellite is identical to the spin period of the central body
- teething troubles — Teething troubles are the same as teething problems.
- temporomandibular — of, relating to, or situated near the hinge joint formed by the lower jaw and the temporal bone of the skull.
- the carboniferous — the Carboniferous period or rock system
- to knit your brow — If you knit your brows or knit your eyebrows, you frown because you are angry or worried.
- torricellian tube — a vertical glass tube partly evacuated and partly filled with mercury, the height of which is used as a measure of atmospheric pressure
- triboluminescence — luminescence produced by friction, usually within a crystalline substance.
- turbinado (sugar) — a partially refined, granulated, pale-brown sugar obtained by washing raw sugar in a centrifuge until most of the molasses is removed
- ultramicrobalance — a balance for weighing precisely, to a hundredth of a microgram or less, minute quantities of material.
- unreconstructible — not capable of being reconstructed.
- urban exploration — a recreational activity in which people explore derelict urban structures such as abandoned sewers or underground railways or attempt to access areas which are closed to the public such as the roofs of skyscrapers
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- working substance — a substance, usually a fluid, that undergoes changes in pressure, temperature, volume, or form as part of a process for accomplishing work.