Coffee is the second largest traded commodity in the world, next to crude oil. Itβs also one of the oldest commodities, with over 2.25 billion cups of coffee consumed worldwide daily.
pentode
(noun) a thermionic tube having five electrodes
Source: WordNet® 3.1
pentode (plural pentodes)
a thermionic valve similar to a tetrode with the addition of a third grid, the suppressor grid; was/is used in high quality audio and radio products
• vacuum tube
• output pentode
• RF pentode
• cathode
• control grid (g1)
• screen grid (g2)
• suppressor grid (g3)
• anode (also called: plate)
Source: Wiktionary
18 June 2025
(noun) large South American evergreen tree trifoliate leaves and drupes with nutlike seeds used as food and a source of cooking oil
Coffee is the second largest traded commodity in the world, next to crude oil. Itβs also one of the oldest commodities, with over 2.25 billion cups of coffee consumed worldwide daily.