matatāhuna
1. (noun) sandbank, shoal.
Ka mutu ka whakaingoatia te matatāhuna he nōhanga mātaitai i te tauranga waka moana o Pari-ā-rua ki tōna ingoa anō, ko Te Whata-kai-a-Tāmairangi (TTR 1990:150). / And the sandbank, a source of shellfish in Porirua Harbour, was named after him as Te Whata-kai-a-Tāmairangi (the storehouse of Tāmairangi).
See also tāhuna