chlorophyll

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Plants

chlo·ro·phyll /ˈklɒrəfɪl, ˈklɔː- $ ˈklɔː-/ noun [uncountable] HBPthe green-coloured substance in plants 叶绿素

Examples from the Corpus

chlorophyll• For most plants, most of the time, additional chlorophyll brings no benefit.• Four sensors on the tractor-mounted unit scan the crop while you're travelling through, measuring chlorophyll content.• We watch them chew and spill a bitter spew of chlorophyll.• And then, maybe: The stinking goat on yonder hill Feeds all day on chlorophyll.• However, the assumption that productivity must be directly related to biomass or chlorophyll is a fallacy.• Is there some seasonal effect that influences the colour of the pigments in leaves after the chlorophyll has broken down?• Light energy from the sun is absorbed by the chlorophyll in the leaves and the water molecules are split.• Having lost its protein, the chlorophyll also breaks down, revealing the carotenoid pigments.Origin chlorophyll (1800-1900) French chlorophylle, from Greek chloro- ( → CHLOROFLUOROCARBON) + phyllon “leaf”