J42

J42 stands for:

• Chronic bronchitis , an infectious disease of the respiratory tract according to the ICD-10 code
• Rolls-Royce Nene , a license-built jet engine
• Tracheitis , an inflammation of the windpipe according to the ICD-10 code
• the Johnson body J ₄₂ , the elongated pentagonal double rotunda

This is a disambiguation page for differentiating between several terms identified with the same word.