Borassus flabellifer Borassus flabellifer /bɔːˈræsəs fləˈbɛlɪfər/

noun

1. Tall fan palm of Africa and India and Malaysia yielding a hard wood and sweet sap that is a source of palm wine and sugar; leaves used for thatching and weaving  ( Borassus flabellifer , longar palm , lontar , palmyra , palmyra palm , toddy palm , wine palm )
   tall fan palm of Africa and India and Malaysia yielding a hard wood and sweet sap that is a source of palm wine and sugar; leaves used for thatching and weaving
   
   

 infernal machine infernal machine /ɪnˈfɜːrnəl məˈʃiːn/

noun

1. A bomb that has a detonating mechanism that can be set to go off at a particular time  ( infernal machine , time bomb )
   a bomb that has a detonating mechanism that can be set to go off at a particular time
   
   

 snorkel snorkel /ˈsnɔrkəl/

noun

1. Air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time  ( breather , schnorchel , schnorkel , snorkel , snorkel breather )
   air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time
    I love snorkeling in the tropics, where you can see colorful fish and coral reefs just beneath the surface
   I love snorkeling in the tropics, where you can see colorful fish and coral reefs just beneath the surface
   
   
2. Breathing device consisting of a bent tube fitting into a swimmer's mouth and extending above the surface; allows swimmer to breathe while face down in the water  ( snorkel )
   breathing device consisting of a bent tube fitting into a swimmer's mouth and extending above the surface; allows swimmer to breathe while face down in the water
    He wore a snorkel to explore the coral reefs while swimming face down.
   He wore a snorkel to explore the coral reefs while swimming face down.
   
   

verb

1. (sport) dive with a snorkel  ( snorkel )
   (sport) dive with a snorkel
   

 pedagogy pedagogy /ˈpɛdəˌgoʊdʒi/

noun

1. The activities of educating or instructing; activities that impart knowledge or skill  ( didactics , pedagogy , educational activity , education , instruction , teaching )
   the activities of educating or instructing; activities that impart knowledge or skill
    He received no formal education
   he received no formal education
    Our instruction was carefully programmed
   our instruction was carefully programmed
    Good classroom teaching is seldom rewarded
   good classroom teaching is seldom rewarded
   
2. The profession of a teacher  ( pedagogy , instruction , teaching )
   the profession of a teacher
    He prepared for teaching while still in college
   he prepared for teaching while still in college
    Pedagogy is recognized as an important profession
   pedagogy is recognized as an important profession
   
   
3. The principles and methods of instruction  ( pedagogics , pedagogy , teaching method )
   the principles and methods of instruction