1. Plural of hippopotamus; large, barrel-shaped mammals native to Africa that spend much of their time in water.
Usage: Standard plural form, though 'hippopotamuses' is also widely used.; Collective noun: a 'bloat' or 'thunder' of hippopotami.

Examples

• The wildlife documentary showed a group of hippopotami bathing in the river.
• Several hippopotami emerged from the water at sunset.
• Hippopotami are herbivores despite their fearsome appearance.
• The zoo's hippopotami attracted crowds of visitors every day.
• In the Serengeti, hippopotami can be spotted in nearly every large water source.