Definition of "CH"
CH
noun
countable and uncountable, plural CHs
(US, army, aviation) Initialism of cargo helicopter.
(set theory) Initialism of continuum hypothesis.
(medicine) Initialism of cluster headache.
countable and uncountable, plural CHs
(US, army, aviation) Initialism of cargo helicopter.
(set theory) Initialism of continuum hypothesis.
(medicine) Initialism of cluster headache.