Definition of atom for Students. 1  1 : the smallest particle of an element that can exist alone or in combination carbon atoms. 2  2 : a tiny particle : bit âI don't believe there's an atom of meaning in it.â â Lewis Carroll, Alice's Adventures in Wonderland.
How Did Mount Everest Get Its Name? The highest mountain in the World, Mount Everest in Nepal was named after and in honour of Sir George Everest who was a British Surveyor General. In 1852 he found it to be the highest peak in the World during the Great Survey of India. It was originally called Mont Everest.
â¢ MOUNT EVEREST (noun). The noun MOUNT EVEREST has 1 sense: 1. a mountain in the central Himalayas on the border of Tibet and Nepal; the highest mountain peak in the world (29,028 feet high). Familiarity information: MOUNT EVEREST used as a noun is very rare.