We found one dictionary that defines the word indelible inks:

General (1 matching dictionary)

1. indelible inks: Vocabulary.com

(Note: See indelible_ink as well.)

Definitions from WordNet (indelible ink) ▸ noun:  ink that cannot be erased or washed away ▸ Also see indelible_ink ▸ Words similar to indelible inks ▸ Usage examples for indelible inks ▸ Idioms related to indelible inks ▸ Wikipedia articles (New!) ▸ Words that often appear near indelible inks ▸ Rhymes of indelible inks ▸ Invented words related to indelible inks