The Public Health Agency of Canada has issued a Travel Health Notice for the Global Update: Zika virus infection recommending that Canadians practice special health precautions while travelling in affected countries. Pregnant women and those considering becoming pregnant should avoid travel to Mexico.
Define axial. axial synonyms, axial pronunciation, axial translation, English dictionary definition of axial. adj. 1. Relating to, characterized by, or forming an axis. 2. Located on, around, or in the direction of an axis. axâ²iÂ·alâ²iÂ·ty n. axâ²iÂ·alÂ·ly adv.
A planet's axial tilt is a measure of whether the planet is in prograde (the natural direction of rotation of most bodies in our solar system) or retrograde (the opposite, ie, from East to West) rotation. Tilt angle is measured relative to the orbital plane of a planet. A tilt between 1 to 90 degrees is considered prograde rotation (Earth's tilt is 23 degrees, in prograde rotation), a tilt of 90 degrees is considered perpendicular, and neither prograde or retrograde.