Tra từ pneumoencephalogram - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

pneumoencephalogram

noun

an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast
• Syn:
encephalogram
• Hypernyms:
roentgenogram, X ray, X-ray, X-ray picture, X-ray photograph