Dictionary
subtrop'ical high'
Meteorol.
one of several highs, as the Azores and Pacific highs, that prevail over the oceans at latitudes of about 30 degrees N and S. Also called
subtrop'ical anticy'clone. Cf.
high (def. 41).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.