Definition of pneumo- in English:

pneumo-

Pronunciation: /ˈnjuːməʊ/

combining form

1Relating to the lungs: pneumogastric
2Relating to the presence of air or gas: pneumothorax

Origin

sense 1 from Greek pneumōn 'lung'; sense 2 from Greek pneuma 'air'.

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Word of the day grammarian
Pronunciation: grəˈme(ə)rēən
noun
a person who studies and writes about grammar