boron

boori The chemical element (symbol B) with an atomic number of 5, which is a metalloid.
(quote-book)|year=1976|page=106|isbn=978-0-323-15575-5|passage=The B6-type octahedral borons are each bonded to five other boron atoms; four are part of the same octahedron, and one is external to this octahedron.
A single atom of this element.
(quote-journal)
(eo-form of)
(inflection of)
boron boron (gloss)
to bore