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Definition 2025
lignan
lignan
English
Noun
lignan (plural lignans)
- (organic chemistry) Any of a class of phenylpropanoid (propylbenzene) type of molecules found in essentially all plants, generally dimeric or higher order, and produced by secondary metabolic pathways branching off of aromatic amino acid biosynthesis, in some cases having associated antioxidant or estrogenic (phytoestrogenic) activities; having in common with lignin the phenylpropanoid monomers, where lignin is a random oxidative polymerization of the same
Derived terms
Derived terms
Old English
Verb
līġnan
- to deny
Conjugation
Conjugation of līġnan (weak class 1)
| infinitive | līġnan | tō līġnanne |
|---|---|---|
| indicative | present | past |
| 1st-person singular | līġne | līġnede |
| 2nd-person singular | līġnest | līġnedest |
| 3rd-person singular | līġneþ | līġnede |
| plural | līġnaþ | līġnedon |
| subjunctive | present | past |
| singular | līġne | līġnede |
| plural | līġnen | līġneden |
| imperative | ||
| singular | līġn | |
| plural | līġnaþ | |
| participle | present | past |
| līġnende | (ġe)līġned | |