The word "ice cap" is spelled using the International Phonetic Alphabet (IPA) as /aɪs kæp/. The first syllable "ice" is pronounced with the diphthong /aɪ/ which is a combination of the vowel sounds /a/ and /ɪ/. The second syllable "cap" is pronounced with the short vowel sound /æ/ followed by the voiceless consonant /p/. This spelling accurately represents the sound of the word "ice cap" in English, which refers to a large mass of ice covering a land area.
An ice cap refers to a mass of perennial ice and snow that covers a relatively small area and forms a continuous dome-shaped or gently sloping layer on the Earth's surface. These frozen features are commonly found in polar regions, primarily in Greenland and Antarctica, but can also be observed in high mountainous regions. Typically, ice caps are characterized by their extensive ice accumulation and a significant lack of melting throughout the year.
Covering an area ranging from a few square kilometers to several tens of thousands, these ice caps are formed by the accumulation of snowfall over many years that compacts into ice and gradually thickens. They act as important water reservoirs on the planet, locking up vast quantities of freshwater in the form of ice.
Ice caps greatly influence the global climate system as they reflect a considerable amount of sunlight back into space, thus having a cooling effect on the Earth's surface. Additionally, they contribute to sea level rise when they melt or calve off icebergs into the surrounding oceans. Moreover, ice caps store valuable information about past climate conditions, as their layers of ice contain trapped air bubbles that provide scientists with records of historical atmospheric composition and climate change.
Due to the ongoing effects of global warming, ice caps are experiencing accelerated melting rates, which poses significant environmental concerns such as rising sea levels, altered ocean currents, and potential disruptions to marine and terrestrial ecosystems.
An i. bag made of such a shape as to be readily fitted over the head.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "ice cap" is derived from Middle English "is" or "ice", which came from Old English "īs" or "īs-", ultimately originating from the Proto-Germanic language. The term "cap" refers to a covering or top portion, which is derived from Middle English "cappe" or "cap", originating from Old English "coppa" or "cæppe". The combination of these words forms "ice cap", referring to a large covering or cap of ice found over vast areas of land.