sol·stice 
/ˈsɑ:lstəs/ noun
plural sol·stic·es /ˈsɑ:lstəs/ noun [count] : one of the two times during the year when the sun is farthest north or south of the equator ◊The summer solstice occurs around June 22 and the winter solstice occurs around December 22. — compare equinox
