pretelson means the tergite just in front of the telson. Lexicurio rates it Rare gem — a strength score of 81 out of 100.
Etymology
From pre- + telson.
noun
- The tergite just in front of the telson“The pretelson does not expand laterally and there is no evidence of an attachment point for cercal blades; this, combined with their absence in the material, indicates that such structures were lacking.”