presplit

From pre- +‎ split.

presplit (third-person singular simple present presplits, present participle presplitting, simple past and past participle presplit)

1. (mining) To shape the outcome of an explosive blast by forming cracks in advance.

presplit (plural presplits)

1. (mining) A crack produced for this purpose.

• Lipperts, ripplest, ripplets, stippler, tipplers