From Longman Dictionary of Contemporary Englishseaweedsea‧weed /ˈsiːwiːd/ noun [uncountable] HBPa plant that grows in the sea
Examples from the Corpus
seaweed• There was algae and seaweed growing on the top layer of bamboos, which was certainly not there before.• And all that good seaweed I collected just sits in a bag in the cupboard, taking up space.• The gelatinous orange pebbles peeked up from a wrap of dark, green seaweed under a one-eyed yellow pond.• Look, they will hide in the lovely seaweed.• For the first time she could smell the dankness and the odour of rotting seaweed.• Nora is distinctly gloomy tonight-perhaps on account of the seaweed aperitif.• The seaweed in reconnaissance photos turned out to be coral reef that interfered with the landings.• The seaweed should then be left for a month. 