po-faced /pōˈfāst/ (informal)

1. (also shortened to po) stupidly solemn and narrow-minded
2. Stolid, humourless

• radio
• radio-
• radio-actinium
• radioactive
• radioactively
• radioactive waste
• radioactivities
• radioactivity
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• radio altimeter
• radio amateur
• radio amateurs
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• radio astronomy
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• radioautographs
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• radiobiologies
• radiobiologist
• radiobiologists
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• radiocarbon