sound of stones struck together, boron
硼 centers on the element boron, named from borax, and the clinking sound of stones struck together. The two meanings are distinct: one is a modern chemical term, the other an onomatopoeic description of a sharp, resonant impact.
硼 combines 石 (stone) with 朋, which likely contributes the sound. The character was created to represent the element boron, and the stone radical reflects its mineral origin. The onomatopoeic meaning 'sound of stones struck together' is a natural extension of the stone component.
Stone 石 on the left and 朋 on the right: imagine two friends (朋) clinking stones together, producing a sharp sound, or picture a boron mineral being extracted from stone.
For ホウ, imagine the sound of stones striking together: 'hou!' The sharp, resonant 'hou' echoes the reading ホウ.
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