nacreous cloud | (n) a luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon, Syn. mother-of-pearl cloud |
Nacreous clouds | เมฆสีมุก หรือเมฆเนครีอัส [อุตุนิยมวิทยา] |
nacreous cloud | (n) a luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon, Syn. mother-of-pearl cloud |