無毒

1. Origins, structure, and basic meaning

• Structure: 無毒, read むどく, means nontoxic, or having no toxicity.
• Basic usage: In この塗料は乾くと無毒になると説明されている。, the sentence reports an explanation that the paint becomes nontoxic once dry.

2. Common pitfalls and similar expressions

• Conditions and scope
  • 乾くと無毒になる includes the condition that the paint is dry. 無毒 concerns toxicity, rather than harmlessness in every possible respect.