boron

Noun
  1. A trivalent metalloid element;
    Occurs both in a hard black crystal and in the form of a yellow or brown powder (synset 114656049)
    is a type of: chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
    substance meronym:
    • borax - an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent
    • kernite - a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron
    same as: atomic number 5, b

Found on Word Lists

Other Searches