adj.木质化的
动词lignify的过去式和过去分词.
The cell wall has undergone secondary thickening, and is often lignified. 细胞壁多发生木质化而次生加厚。
When the aggregates reached a certain size the inner cells became lignified. 当这些聚体达到一定体积时，内部的细胞变成木质化。
