elective (Noun) Something that is option or that may be elected, especially a course of tertiary study. elective (Adjective) Of, or pertaining to voting or elections. elective (Adjective) That involves a choice between options; optional or discretionary. My insurance wouldn't pay for the operation because it was elective surgery.
the mellotron is an electro mechanical polyphonic tape replay keyboard originally developed and built in birmingham england in 1963it evolved from a similar instrument the chamberlin but could be mass produced more effectivelyroduction of the mellotron ceased in 1986 but it regained popularity in the 1990s and was used by several notable bands this led to the resurrection of the original manufacturer streetly electronics
Perched next to carbon on the Periodic Table of Elements, boron is a metalloid, a substance with both metallic and nonmetallic properties. It's a complicated element, as Stony Brook University professor Artem Oganov told the New York Times in 2009. Boron is a truly schizophrenic element, Oganov said. Boron may have been the key to the evolution of life on Earth. 2  The element stabilizes ribose, part of RNA, the self-assembling molecule that may have preceded DNA. ( 3 Viruses are essentially roving RNA strands.) A June 2014 study found that boron is present in the oldest rocks on Earth, which date back 3.8 billion years.