Emily Dickinson Lexicon

TE-NA'CIOUS-NESS, n.

1. The quality of holding fast; unwillingness to quit, resign, or let go; as, a man's tenaciousness of his rights or opinions.
2. Adhesiveness; stickiness; as, the tenaciousness of clay or glue.
3. Retentiveness; as, the tenaciousness of memory.