Homophones for
ceras, ceres, cerris, serous

ceras / ceres / cerris / serous [ˈsɪrəs]

ceras – n. – one of often brightly coloured and branching integumentary papillae that serve as gills and occur on the backs of nudibranchs and certain related mollusks

ceres – n. pl. of cere – a waxy fleshy covering at the base of the upper beak in some birds, e.g., parrots, birds of prey

cerris – n. – the European Turkey oak (Quercus cerris)

serous – adj. – consisting of or related to serum or different sera; 2. anat. moistened by serum (the clear, yellowish liquid that separates when blood clots); 3. watery, resembling serum