|Easton's Bible Dictionary|
A gangrene or mortification which gradually spreads over the whole body (2 Timothy 2:17). In James 5:3 "cankered" means "rusted" (R.V.) or tarnished.
Noah Webster's Dictionary
1. (n.) A corroding or sloughing ulcer; esp. a spreading gangrenous ulcer or collection of ulcers in or about the mouth; -- called also water canker, canker of the mouth, and noma.
2. (n.) Anything which corrodes, corrupts, or destroy.
3. (n.) A disease incident to trees, causing the bark to rot and fall off.
4. (n.) An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungous growths; -- usually resulting from neglected thrush.
5. (n.) A kind of wild, worthless rose; the dog-rose.
6. (v. t.) To affect as a canker; to eat away; to corrode; to consume.
7. (v. t.) To infect or pollute; to corrupt.
8. (v. i.) To waste away, grow rusty, or be oxidized, as a mineral.
9. (v. i.) To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous.
Int. Standard Bible Encyclopedia
Canker (4 Occurrences)
2 Timothy 2:17 And their word will eat as doth a canker: of whom is Hymenaeus and Philetus; (KJV WBS)
James 5:3 Your gold and silver is cankered; and the rust of them shall be a witness against you, and shall eat your flesh as it were fire. Ye have heaped treasure together for the last days. (Root in KJV DBY WBS)
Jeremiah 51:14 Yahweh of Armies has sworn by himself, saying, Surely I will fill you with men, as with the canker worm; and they shall lift up a shout against you. (WEB JPS ASV YLT)
Jeremiah 51:27 Set up a standard in the land, blow the trumpet among the nations, prepare the nations against her, call together against her the kingdoms of Ararat, Minni, and Ashkenaz: appoint a marshal against her; cause the horses to come up as the rough canker worm. (WEB JPS ASV YLT)