formylium

Etymology

From formyl + -ium.

formylium means A positively-charged cation with the formula HCO⁺, related to formaldehyde, aldehydes, and formyl. Lexicurio rates it Rare gem — a strength score of 80 out of 100.

noun

A positively-charged cation with the formula HCO⁺, related to formaldehyde, aldehydes, and formyl.