zequals
Is equal to, after performing such a reduction.
rare
Using Zequals, whenever you encounter a number, you immediately round it to a single digit followed by zeroes (if it's bigger than ten). So for example: 18 zequals 20. 142 zequals 100. 2.3 zequals 2.
Where it comes from
Coined in 2013 by English author Rob Eastaway, from equals. Eastaway wrote that "the Z is for Zeroes, and also for the ZigZagness of the symbol".
Adapted from the Wiktionary entry zequals (CC BY-SA 4.0).