isobutene (countable and uncountable, plural isobutenes)
(organic compound) The unsaturated hydrocarbon methylpropene, (CH3)2C=CH2; used in the manufacture of polybutene and butyl rubber.
• isobutylene
• methylpropene (IUPAC name)
Source: Wiktionary
9 May 2025
(noun) anything in accord with principles of justice; “he feels he is in the right”; “the rightfulness of his claim”
Coffee dates back to the 9th century. Goat herders in Ethiopia noticed their goats seem to be “dancing” after eating berries from a particular shrub. They reported it to the local monastery, and a monk made a drink out of it. The monk found out he felt energized and kept him awake at night. That’s how the first coffee drink was born.
