What does SERAC mean?

Heres the requested information about "serac": 1. Parts of Speech: Noun 2. Definitions: - A pinnacle or ridge of ice on the surface of a glacier, typically formed by melting and refreezing. 3. Pronunciations: - US: /ˈsɛræk/ - UK: /ˈsɛrak/ 4. Origin and Usage: - The word "serac" comes from the French word "sérac" which means a block of ice. It was first used in English in the 19th century to describe the jagged ice formations found on glaciers. The term is commonly used in mountaineering and glaciology. 5. Synonyms: - Ice pinnacle, ice tower, ice cliff 6. Related Words: - Glacier, crevasse, frost, frosty, icier 7. Example Sentences: - The climbers were careful to avoid the seracs on their way up the mountain. - The seracs on the glacier made for a beautiful but treacherous landscape. - The melting of the seracs is a sign of global warmings impact on the environment.