situated in or characteristic of regions immediately north or south of equatorial regions
subequatorial in American English
(ˌsʌbikwəˈtɔriəl, -ˈtour-, -ekwə-)
adjective
of, pertaining to, or being a region near the equatorial region
Word origin
[sub- + equatorial]sub- is a prefix occurring originally in loanwords from Latin (subject; subtract; subvert; subsidy). On this model, sub- is freely attached to elements of any origin and used with the meaning “under,” “below,”“beneath” (subalpine; substratum), “slightly,” “imperfectly,” “nearly” (subcolumnar; subtropical), “secondary,” “subordinate” (subcommittee; subplot)