Longman Dictionary of Contemporary English
primary stress
noun
EXAMPLES FROM CORPUS
▪ Obviously, single-syllable words present no problems - if they are pronounced in isolation they are said with primary stress.
▪ When is primary stress placed on the first word of the compound and when on the second?
▪ When stress is being discussed, the mark indicates primary stress and indicates secondary stress.
Usage examples of "primary stress".
I've invited one of the dreadnought's designers here to explain the ship's primary stress points, targets which will disable the ship, but also preserve it.