"pertaining to a climax," 1832, from climax, apparently on the analogy of syntax/syntactic. Related: Climactical.
a climactic development
clientele
cliff
cliff-hanger
Clifford
climacteric
climactic
climate
climate change
climatic
climatography
climatological
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}