glass lizard glass lizard /ɡlæs ˈlɪzərd/

noun

1. Snakelike lizard of Europe and Asia and North America with vestigial hind limbs and the ability to regenerate its long fragile tail  ( glass lizard , glass snake , joint snake )
   snakelike lizard of Europe and Asia and North America with vestigial hind limbs and the ability to regenerate its long fragile tail
    Some believe the joint snake can rejoin its body even after being cut, though it's a myth.
   Some believe the joint snake can rejoin its body even after being cut, though it's a myth.
   
   

 DDT DDT /ˌdiːˌdiːˈtiː/

noun

1. An insecticide that is also toxic to animals and humans; banned in the United States since 1972  ( DDT , dichlorodiphenyltrichloroethane )
   an insecticide that is also toxic to animals and humans; banned in the United States since 1972
   
   

 mosquito fern mosquito fern /məˈskiːtoʊ fɜːrn/

noun

1. Small free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe  ( Azolla caroliniana , Carolina pond fern , floating fern , mosquito fern )
   small free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe
   
   

 upgrade upgrade /ˈʌpˈgreɪd/

noun

1. The act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)  ( upgrade )
   the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)
    The power plant received a new upgrade
   the power plant received a new upgrade
   
2. Hardware that provides better performance than an earlier version did  ( upgrade )
   hardware that provides better performance than an earlier version did
   
3. [ N. American] The property possessed by a slope or surface that rises  ( rising slope , upgrade [ N. American] , rise )
   the property possessed by a slope or surface that rises
   
4. A reservation that is improved  ( upgrade )
   a reservation that is improved
    I got an upgrade to first class when coach class was full
   I got an upgrade to first class when coach class was full
   
5. Software that provides better performance than an earlier version did  ( upgrade )
   software that provides better performance than an earlier version did
   
6. [ N. American] An upward slope or grade (as in a road)  ( acclivity , ascent , climb , raise , rise , upgrade [ N. American] )
   an upward slope or grade (as in a road)
    The car couldn't make it up the rise
   the car couldn't make it up the rise
   
   

verb

1. () Rate higher; raise in value or esteem  ( uprate , upgrade )
   rate higher; raise in value or esteem
   
2. () To improve what was old or outdated  ( upgrade )
   to improve what was old or outdated
    I've upgraded my computer so I can run better software
   I've upgraded my computer so I can run better software
    The company upgraded their personnel
   The company upgraded their personnel
   
3. Give better travel conditions to  ( upgrade )
   give better travel conditions to
    The airline upgraded me when I arrived late and Coach Class was full
   The airline upgraded me when I arrived late and Coach Class was full
   
4. Get better travel conditions  ( upgrade )
   get better travel conditions
    I upgraded to First Class when Coach Class was overbooked
   I upgraded to First Class when Coach Class was overbooked
   
5. Give a promotion to or assign to a higher position  ( advance , kick upstairs , raise , elevate , promote , upgrade )
   give a promotion to or assign to a higher position
    John was kicked upstairs when a replacement was hired
   John was kicked upstairs when a replacement was hired
    Women tend not to advance in the major law firms
   Women tend not to advance in the major law firms
    I got promoted after many years of hard work
   I got promoted after many years of hard work