Meaning: Use up, consume fully. Classified under: Verbs of eating and drinking. Synonyms: expend; use. Context example: The legislature expended its time on school questions Expend entails doing...: consume; deplete; eat; eat up; exhaust; run through; use up; wipe out (use up (resources or materials)) Troponyms (each of the following is one way to expend):
Supernova nucleosynthesis. Supernova nucleosynthesis is a theory of the production of many different chemical elements in supernova explosions, first advanced by Fred Hoyle in 1954. The nucleosynthesis, or fusion of lighter elements into heavier ones, occurs during explosive oxygen burning and silicon burning processes. Those fusion reactions create the elements silicon, sulfur, chlorine, argon, sodium, potassium, calcium, scandium, titanium and iron peak elements: vanadium, chromium, manganese, iron, cobalt, and nickel.
The material thrown off from the supernova explosion is ionised by the supernova remnant. One of the best examples of this is the Crab Nebula, in Taurus. It is the result of a recorded supernova in the year 1054 and at the centre of the nebula is a neutron star, created during the explosion.