Definition of Sea Dayak in English:

Sea Dayak

noun

  • another term for the Iban people
    • ‘The Land Dayaks and the Sea Dayaks of Sarawak were surveyed for haptoglobin, transferrin and serum albumin variants.’
    • ‘Swords from the Sea Dayak Parang category are not the same as Parang Inland.’
    • ‘Europeans invented the term ‘Dayak’, then labeled the Bidayuh ‘Land’ Dayaks and the Ibans ‘Sea’ Dayaks to keep them straight.’

Origin

So named because of their involvement in coastal raids on the neighbouring Land Dayaks.