also: ほうそ
noun
boron (B)
Chemical element with atomic number 5. Used in scientific and technical contexts.
ホウ素は半導体の材料として使われる。
Boron is used as a material for semiconductors.
From German 'Bor' or English 'boron', combined with 素 (element). The kanji 硼 is a Chinese character used for borax/boron.