Newtonian reflector Newtonian reflector /njuːˈtoʊniən rɪˈflɛktər/

noun

1. Reflecting telescope in which the image is viewed through an eyepiece perpendicular to main axis  ( Newtonian reflector , Newtonian telescope )
   reflecting telescope in which the image is viewed through an eyepiece perpendicular to main axis
   
   

 disco disco /ˈdɪskoʊ/

noun

1. A public dance hall for dancing to recorded popular music  ( disco , discotheque )
   a public dance hall for dancing to recorded popular music
   
   
2. Popular dance music (especially in the late 1970s); melodic with a regular bass beat; intended mainly for dancing at discotheques  ( disco , disco music )
   popular dance music (especially in the late 1970s); melodic with a regular bass beat; intended mainly for dancing at discotheques
   

verb

1. Dance to disco music  ( disco )
   dance to disco music
   

 test equipment test equipment /tɛst ɪˈkwɪpmənt/

noun

1. Equipment required to perform a test  ( test equipment )
   equipment required to perform a test
    The lab technician set up the test equipment for the experiment.
   The lab technician set up the test equipment for the experiment.
   
   

 artillery artillery /ɑːrˈtɪlɝi/

noun

1. () Large but transportable armament  ( heavy weapon , ordnance , artillery , gun )
   large but transportable armament
     The artillery fired rounds into the enemy's territory.
   The artillery fired rounds into the enemy's territory.
   
   
2. () (military) an army unit that uses big guns  ( artillery unit , artillery )
   (military) an army unit that uses big guns
    During the battle, the artillery unit was crucial in holding back the enemy advances.
   During the battle, the artillery unit was crucial in holding back the enemy advances.
   
   
3. () A means of persuading or arguing  ( artillery , weapon )
   a means of persuading or arguing
    He used all his conversational weapons
   he used all his conversational weapons