What is the meaning of Halon?

A hydrocarbon (more precisely haloalkane) in which one or more hydrogen atoms have been replaced by halogens

swallow

shadow

to call, appoint

to fetch, get

accusative singular of halo

genitive singular of halko

genitive singular of halo

first-person singular present indicative of halkoa

superessive singular of hal

halon

definite singular of halo

Source: wiktionary.org