Definition of decagonal in English:

decagonal

adjective

  • See decagon

    • ‘We find that some atoms leave the decagonal layers to form icosahedral clusters.’
    • ‘The first few odd decagonal numbers are 1, 27, 85, 175, 297,…, and the first few even decagonal numbers are 10, 52, 126, 232, 370, 540,….’

Pronunciation

decagonal

/dɪˈkaɡən(ə)l/