What is the difference between writing the phrase missile experimental and experimental missile?
The first one is in French.
"missile experimental looks like you're modifying the word 'experimental with 'missile'; almost as if naming the missile "experimental"; where as 'experimental missile' describes the missile modified by experimental as a work in progress, a missile in the experimental stage of development. It just makes it all bit more clear.
Zirp: missile-experimental means
missile-experimental means: pertaining to experiments with missiles "experimental missile" is a missile that isn't mass-produced yet