inkball noun2 •The gall of an oak tree, used to produce ink.The first tree I knew was an oak under which I played as a small child and gathered large inkballs that I used as marbles. — 1946 •(historical) 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.[…]consider that this perfect work was done on a wooden press, that the form was inked by hand with inkballs or "daubers,"[…] — 1977 formsinkballs