Etiolation
It turns out the word I’ve been using for years, “elonated”, which I learned from Hap, is not a word at all. I think it was a combination of the “elongation” of stems from “etiolation” that Hap mushed together into “elonation”.
In other words, I’ve been telling customers that their plants are “elonated” because they aren’t getting enough sun. It’s easier to say than “etiolated” and maybe I should just continue with our made-up word.