/?l?ɡ.n?n/asubstancefoundin theedgesof someplantcellsthat makes theplanthard likewood木质素(Definition ofligninfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)
Examplesoflignin
ligninDuring lignification, phenyl rings ofligninprecursors align to the cellulose molecule surfaces in a controlled and ordered process.From theCambridge English CorpusParasites were identified using the standard keys and, where necessary, they were cleared in lactophenol or stained with polyvinyl acetate andligninpink.From theCambridge English CorpusThere is generally a higher expression of genes involved in cellulose andligninbiosynthesis in the wild-type testa as compared to the mutant.From theCambridge English CorpusThis is largely determined by the age of the late wood that is likely to have highlignincontent.From theCambridge English CorpusModified procedure to determine acid insolubleligninin wood and pulp.From theCambridge English CorpusThis may relate to covalent binding ofligninto hemicellulose, which confers mechanical strength to the cell wall.From theCambridge English CorpusThis implies that the construction of leaf biomass is different among lifeform categories (for exampleligninversus cellulose versus others).From theCambridge English CorpusThe combination of phloroglucinol and hydrochloric acid stains theligninred and increases visibility of annual rings, particularly in the softer wood of young trees.From theCambridge English CorpusCarbohydrates andligninof plant materials used in animal production.From theCambridge English CorpusBy feeding on plant parts with highlignincontent or fibrous tissues, a ruminant fails to assimilate enough protein for its maintenance requirement.From theCambridge English CorpusHigh spectral resolution remote sensing of forest canopylignin, nitrogen and ecosystem process.From theCambridge English CorpusThe mature mutant testa has reduced amounts of cellulose andligninas compared to the wild type.From theCambridge English CorpusWe measured dry weight, pericarp thickness and concentrations of nitrogen, total phenol, condensed tannin,lignin, lipid, starch and total sugar.From theCambridge English CorpusThelignincontent, polyphenols and the overall chemical composition of the crop residue also affects their use as organic manures.From theCambridge English CorpusNitrogen immobilisation in decaying hardwood leaf litter as a function of initial nitrogen andlignincontent.From theCambridge English CorpusThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.#https://dictionary.cambridge.org//dictionary/english/lignin##
