We don't have synonyms for inkball yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are ink ball.
(n) :
(historical, printing) A leather-covered dauber, stuffed with soft, resilient wadding, with a wooden handle, used to ink type forms for printing. A predecessor of brayers and self-inking presses.
(n) :
The gall of an oak tree, used to produce ink.
(n) :
(historical, printing) A leather-covered dauber, stuffed with soft, resilient wadding, with a wooden handle, used to ink type forms for printing. A predecessor of brayers and self-inking presses.
(n) :
The gall of an oak tree, used to produce ink.