_{Unit Seventeen}

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_{Light bulb :/      / n ta usu round hollow container of thin glass with a wire inside , which light up when electricity is passed a through it : the light bulb , gone (stopped working ); can you put anew 100 Walt bulb in .}

 

_{Experiment:/      / n{c(on);u} (a) trail made in order to learn something or prove the truth of an idea : we hope to find the answer to this problem by experiment.} 

 

_{Experiment : /        /  v {I(on, with )} to do an experiment : Is it right to experiment on animals % they experimented with the new materials .}

 

_{Telegraph 1:/   11   /  n 1{u}a method of sending messages either by using radio signals or (esp .formerly)electrical signals along wire: the news came by telegraph. 2{c} an apparatus that receives or sends message in this way see  also BASM TELEGRAPH.}

_{in this way see  also BASM TELEGRAPH.}

_{Graphic/     / adj a telegraph massage .}

 

_{telegraph: 2: v{L;T(to)}to send (a message) or inform (a person) by telegraph :the news was}

_{telegraphed across the Atlantic . {+obj(i)tobj(d)} we telegraph her bad news go wrong: make}

_{mistake, e.g. in following a path or method p. to fail or experience trouble c. to stop working}

_{properly d. old fash. to act badly ,immorally ,etc,}

 

_{prilliant1: /        / adj1 very bright, splendid ,or showy in appearance. 2causting great admiration or satisfaction, esp. Because a. very clever. B highly skilled; unusually good.}

_{Brilliant2:n teach a precious stone cut with many surfaces to make it shine.}

 

_{Inventor:/         / n a person who invents some things new, esp, one whose job is inventing things scientific/           / adj1[no comp] of or being science or its principles or rules.2. needing or showing exact. Knowledge, skill or use of system: SYSTEMATIC}

 

_{Chemical1:/         / adj of connected with used in or made by chemistry chemical reaction occurs if you put zinc into Sulphuric acid}

 

_{Chemical2:n a substance used in or produced by chemistry :any of the ELEMEWTS or the compounds form them.}

_{Complicated:/     11      / adg 1 difficult to understand or deal with.2.consis ting of many closely related or connected parts.}

 

_{Fix1: with smth phrv[T]to look for along time at (someone) with}

 

_{Fix2: sbdy ./smth.--- up phr u[T]1 [cwith] infml to provide (someone) with something they need . usu by making agreement. .2. to repair, changer or improve to make suitable for new needs}

 

_{graml.0.phone:/ graeafoun /noun a machine on which records can be played ,so that you can hear the music or words}

_{plug1: plng /noun /}

_{1.            around piece of rubber ,plastic ,etc which stops water running out of a basin plag 2.verb l present participle plugging. Pastlpluged/1.to block or close a hole with something 2. plug some thing into connect an electrical machine to supply of electricity :you need to plug in the lamp before it ll work} 

 

 _{watt :wnt/ noun a measure of electrical power:60watt electric light}

 

_{connect: ka’net/verb}

_{to join tow or more places or things :will you connect this wire to the television?}

 

_{Torch:/tcts/noun}

_{Plural to rches an electric light that you can carry are and with you :he used a torch to see into the dark cupboard}

 

_{Prepared by:}

_{Ahmed Abu  Slaiyeh}

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