English Words Starting With B

• ballistics

  nounLow frequency / Specialized term
  /bəˈlɪstɪks/The scientific study of the motion, behaviour, and effects of projectiles, especially bullets, shells, and rockets.
• ballistite

  nounVery Low (Technical/Historical)
  /ˈbæl.ɪ.staɪt/A smokeless, double-base propellant used in firearms and rockets.
• ballistocardiogram

  nounVery Rare / Technical
  /ˌbæl.ɪ.stəʊˈkɑː.di.ə.ɡræm/A graphical recording of the body's recoil movements caused by the ejection of blood into the aorta during cardiac systole.
• ballistocardiograph

  nounVery Low
  /ˌbæl.ɪ.stəʊˈkɑː.di.ə.ɡrɑːf/A medical instrument that measures and records the body's recoil movements caused by the heartbeat and blood ejection into the arteries.
• ballistospore

  nounVery Low
  /bəˈlɪstə(ʊ)ˌspɔː/a spore that is actively discharged or propelled from its fungal parent structure
• ballium

  nounExtremely Rare / Obsolete
  /ˈbæl.i.əm/An outer defensive wall or court surrounding the keep of a medieval castle, derived from historical Latin term for the bailey.
• ballocks

  plural-nounLow
  /ˈbɒl.əks/The testicles; used as a vulgar or slang term.
• ballon

  nounB1
  /bəˈluːn/A flexible bag, often brightly coloured and made of rubber, plastic or latex, that can be inflated with air or gas to become buoyant.
• ballon d'essai

  nounC2
  /ˌbalɒ̃ dɛˈseɪ/A trial balloon; an idea, plan, or proposal floated publicly to test reaction before formal commitment.
• ballonet

  nounVery low
  /ˈbæl.ə.neɪ/An internal air compartment within an airship's outer envelope, used to control buoyancy and trim by inflating or deflating it.
• ballonne

  nounHigh
  /bəˈluːn/A flexible bag filled with air or gas, designed to float or be used in various applications.
• balloon

  adjectivenounverbverb-intransitiveverb-transitiveB1
  /bəˈluːn/A flexible bag, usually made of rubber or latex, that can be inflated with air or gas, often used as a toy or decoration.
• balloon angioplasty

  nounC2
  /bəˌluːn ˈæn.dʒi.əʊˌplæs.ti/A medical procedure in which a tiny balloon is inflated inside a blocked or narrowed blood vessel (artery) to widen it and restore blood flow.
• balloon barrage

  nounVery Low (C2 / Historical / Specialized)
  /bəˈluːn ˈbær.ɑːʒ/A defensive military tactic using anchored barrage balloons tethered by cables to protect an area (e.g., a city, factory, ship) from low-flying enemy aircraft.
• balloon chuck

  nounVery Low
  /bəˈluːn tʃʌk/A device or mechanism used to launch or propel balloons, typically for entertainment or scientific purposes.
• balloon clock

  nounVery Low
  /bəˈluːn klɒk/A specific, historical type of bracket clock, popular in the late 18th and early 19th centuries, characterized by its rounded, balloon-shaped case.
• balloon frame

  nounC1
  /bəˈluːn freɪm/A method of constructing a wooden building frame where long, continuous vertical studs run from the foundation to the roof, with intermediate floor joists nailed to the sides of these studs.
• balloon loan

  nounC1
  /bəˈluːn ləʊn/A loan arrangement where small periodic payments are made for a fixed term, followed by one large final payment (the 'balloon payment') to repay the remaining principal balance.
• balloon payment

  nounC1
  /bəˌluːn ˈpeɪmənt/A large, final payment that pays off a loan, typically much larger than the regular installment payments.
• balloon sail

  nounC2 (Very Low Frequency - Nautical/Technical)
  /bəˈluːn seɪl/A large, light sail, typically a jib or staysail, set forward of the mast on a sailing vessel, used in light winds.

Showing 881–900 of 10030 words.