a. 害溃疡的, 恶性的, 恶毒的

Cankered \Can"kered\, a.
1. Affected with canker; as, a cankered mouth.

2. Affected mentally or morally as with canker; sore,
envenomed; malignant; fretful; ill-natured. ``A cankered
grandam's will.'' --Shak.


Canker \Can"ker\ (k[a^][ng]"k[~e]r), v. t. [imp. & p. p.
{Cankered} (-k[~e]rd); p. pr. & vb. n. {Cankering}.]
1. To affect as a canker; to eat away; to corrode; to
consume.

No lapse of moons can canker Love. --Tennyson.

2. To infect or pollute; to corrupt. --Addison.

A tithe purloined cankers the whole estate.
--Herbert.