Definition

Noun: A permanent, extensive covering of ice and snow over a large land area, such as a polar region or a high mountain peak. An icecap is a type of glacier that flows outward in all directions from its center.

Usage

The word "icecap" is used to describe a specific geographical feature. It is typically a singular, countable noun. * It is often preceded by the definite article "the" when referring to a specific, well-known icecap (e.g., the Vatnajökull icecap). * It can be used in the plural form "icecaps" when discussing them as a general category or multiple specific ones.

Examples

• Noun:
  • Scientists are studying the rapid melting of the Greenland icecap.
  • The plane flew over the vast, white expanse of the polar icecap.
  • Mountain icecaps are important sources of freshwater for rivers.

Advanced Usage

• "Icecap" vs. "Ice sheet": While often used interchangeably in general contexts, "ice sheet" is the more precise scientific term for the enormous ice masses covering Antarctica and Greenland. An "icecap" is generally considered smaller than an ice sheet but larger than a valley glacier.
  • The Antarctic Ice Sheet is the largest single mass of ice on Earth.

Variants and Related Words

• Ice cap (noun): An alternative spelling, often written as two words.
• Ice-covered (adjective): Describing an area that is covered with ice.
  • The ice-covered plateau was treacherous to cross.
• Polar cap (noun): A common synonym, especially when referring to the icecaps at the North or South Pole.

Synonyms

• Ice sheet
• Glacier (broader term; an icecap is a type of glacier)
• Polar cap

Related Idioms and Phrases

• To break the icecap: This is not a standard idiom. The common idiom is "to break the ice," which means to initiate a conversation or relieve social tension. The word "icecap" itself is not typically used in idiomatic expressions.

Noun

1. a mass of ice and snow that permanently covers a large area of land (e.g., the polar regions or a mountain peak)