lignin
(noun) a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants
Source: WordNet® 3.1
lignin (usually uncountable, plural lignins)
(organic compound) A complex non-carbohydrate aromatic polymer present in all wood.
• lining
Source: Wiktionary
Lig"nin, n. Etym: [L. lignum wood: cf. F. lignine.] (Bot.)
Definition: A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.
Note: Recent authors have distinguished four forms of this substance, naming them lignose, lignin, lignone, and lignireose.
Source: Webster’s Unabridged Dictionary 1913 Edition
3 April 2025
(noun) an assemblage of parts that is regarded as a single entity; “how big is that part compared to the whole?”; “the team is a unit”
Contrary to popular belief, coffee beans are not technically beans. They are referred to as such because of their resemblance to legumes. A coffee bean is a seed of the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit, often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit.
