jambeau /ˈd͡ʒæm.boʊ/ noun2 •[in the plural] (historical) A piece of armour for the leg (especially below the knee), a greave.The mortall steele despiteously entayld / Deepe in their flesh, quite through the yron walles, / That a large purple streme adown their giambeux falles. — 1590 •Any of the spikefishes of the genus Parahollardia. formsjambeaus · jambeaux