pilot burner pilot burner /ˈpaɪlət ˈbɝːnər/

noun

1. Small auxiliary gas burner that provides a flame to ignite a larger gas burner  ( pilot , pilot burner , pilot light )
   small auxiliary gas burner that provides a flame to ignite a larger gas burner
   
   

 leatherleaf leatherleaf /ˈlɛðərliːf/

noun

1. North temperate bog shrub with evergreen leathery leaves and small white cylindrical flowers  ( Chamaedaphne calyculata , leatherleaf )
   north temperate bog shrub with evergreen leathery leaves and small white cylindrical flowers
   
2. Stiff leathery-leaved fern of western North America having ovate fronds parted to the midrib  ( coast polypody , leatherleaf , leathery polypody , Polypodium scouleri )
   stiff leathery-leaved fern of western North America having ovate fronds parted to the midrib
   
   

 syllabub syllabub /ˈsɪləbʌb/

noun

1. Sweetened cream beaten with wine or liquor  ( sillabub , syllabub )
   sweetened cream beaten with wine or liquor
   
   
2. Spiced hot milk with rum or wine  ( sillabub , syllabub )
   spiced hot milk with rum or wine
   
   

 degenerate degenerate /dɪˈdʒɛnɝˌeɪt/

adjective

1. Unrestrained by convention or morality  ( debauched , degenerate , degraded , dissipated , dissolute , fast , libertine , profligate , riotous )
   unrestrained by convention or morality
    Congreve draws a debauched aristocratic society
   Congreve draws a debauched aristocratic society
    Deplorably dissipated and degraded
   deplorably dissipated and degraded
    Riotous living
   riotous living
    Fast women
   fast women
   

noun

1. A person whose behavior deviates from what is acceptable especially in sexual behavior  ( degenerate , deviant , deviate , pervert , perv [Informal] )
   a person whose behavior deviates from what is acceptable especially in sexual behavior
   
   

verb

1. Grow worse  ( degenerate , devolve , drop , deteriorate )
   grow worse
    Her condition deteriorated
   Her condition deteriorated
    Conditions in the slums degenerated
   Conditions in the slums degenerated
    The discussion devolved into a shouting match
   The discussion devolved into a shouting match