13-letter words containing r, o, b, h
- hydroaerobics — aerobic exercises performed in water, as in a swimming pool.
- hydroboration — (chemistry) the production or organoboranes by the addition of diborane to unsaturated organic compounds.
- hydrogen bomb — a bomb, more powerful than an atomic bomb, that derives its explosive energy from the thermonuclear fusion reaction of hydrogen isotopes.
- hydrogen bond — a type of chemical bond in which a hydrogen atom that has a covalent link with one of the electronegative atoms (F, N, O) forms an electrostatic link with another electronegative atom in the same or another molecule.
- hyperbolising — to use hyperbole; exaggerate.
- hyperboloidal — Having the shape or form of a hyperboloid.
- hypermobility — An excess amount of elasticity in a bodily joint.
- hypnobirthing — the use of hypnotic techniques during labour by an expectant mother to reduce the pain and emotional stress of delivery
- hypobaropathy — a condition produced in high altitudes, caused by diminished air pressure and reduced oxygen intake; mountain sickness.
- hypobranchial — situated below the gills or beneath the branchial arches.
- in sb's honor — If something is arranged or happens in someone's honor, it is done specially to show appreciation of them.
- inner harbour — a part of a harbour which is further inland
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- know by heart — have memorized
- liberty horse — (in a circus) a riderless horse that performs movements to verbal commands
- lobster shift — Also called lobster trick. dogwatch (def 2).
- lower chamber — lower house.
- lubber's hole — (in a top on a mast) an open space through which a sailor may pass instead of climbing out on the futtock shrouds.
- luxembourgish — Also, Luxembourgish [luhk-suh m-bur-gish] /ˈlʌk səmˌbɜr gɪʃ/ (Show IPA). Letzeburgesch.
- mao inhibitor — any of various substances, as isocarboxazid and phenelzine, that block enzymatic breakdown of certain monoamine neurotransmitters: used to treat severe depression. Abbreviation: MAOI.
- marx brothers — the. a US family of film comedians, esp Arthur Marx, known as Harpo (1888–1964), Herbert Marx, known as Zeppo (1901–79), Julius Marx, known as Groucho (1890–1977), and Leonard Marx, known as Chico (1886–1961). Their films include Animal Crackers (1930), Monkey Business (1931), Horsefeathers (1932), Duck Soup (1933), and A Day at the Races (1937)
- matchboarding — a construction of matchboards.
- megaherbivore — a large herbivore, such as an elephant, weighing more than 1000kg
- membranophone — any musical instrument, as a drum, in which the sound is produced by striking, rubbing, or blowing against a membrane stretched over a frame.
- mephobarbital — The drug methylphenobarbital.
- methocarbamol — a substance, C 1 1 H 1 5 NO 5 , used as a muscle relaxant in combination with other drugs in the treatment of acute, painful musculoskeletal conditions.
- microhabitats — Plural form of microhabitat.
- middleborough — a town in SE Massachusetts.
- middlesbrough — a seaport in NE England, on the Tees estuary.
- mock whipbird — an Australian bird, Pachycephala rufiventris, which is not of the whipbird family
- modern hebrew — the living language of modern Israel, a revived form of ancient Hebrew. Abbreviation: ModHeb.
- mother abbess — the female head of a religious house of nuns
- mouthbreather — a person who breathes through the mouth instead of through the nose
- neighboorhood — Alternative spelling of neighbourhood.
- neighborhoods — Plural form of neighborhood.
- neighbourhood — Standard spelling of neighborhood.
- newport beach — a city in SW California, SE of Los Angeles.
- nonmembership — the fact or condition of being a nonmember
- nonperishable — not subject to rapid deterioration or decay: A supply of nonperishable food was kept for emergencies.
- nonshrinkable — incapable of being shrunk
- north babylon — a city on S Long Island, in SE New York.
- north belmont — a town in S North Carolina.
- north brabant — a province in S Netherlands. 1965 sq. mi. (5090 sq. km). Capital: 's Hertogenbosch.
- north by east — a point on the compass 11°15′ east of north. Abbreviation: NbE.
- north by west — a point on the compass 11°15′ west of north. Abbreviation: NbW.
- northern blot — Biology, Medicine/Medical. a procedure for studying the activity of a specific gene, as in testing for a hereditary defect: RNA fragments in an extract of a cell population or a tissue are separated by gel electrophoresis, transferred to a filter, and then hybridized with labeled DNA or RNA derived from a laboratory-engineered copy of the gene in order to identify the size and abundance of the RNA expressed by that gene.
- novo hamburgo — a city in Rio Grande do Sul state, S Brazil.
- number theory — the study of integers and their relation to one another.
- open brethren — one of the two main divisions of the Plymouth Brethren that, in contrast to the Exclusive Brethren, permits contacts with members outside the sect