Definitions for seamount
ˈsiˌmaʊntseamount

Princeton's WordNetRate this definition:5.0 / 1 vote

1. seamountnoun

   an underwater mountain rising above the ocean floor

WiktionaryRate this definition:0.0 / 0 votes

1. seamountnoun

   A mountain that rises from the floor of the ocean and does not breach the water's surface.

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1. Seamount

   A seamount is a large geologic landform that rises from the ocean floor that does not reach to the water's surface (sea level), and thus is not an island, islet or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abruptly and are usually found rising from the seafloor to 1,000–4,000 m (3,300–13,100 ft) in height. They are defined by oceanographers as independent features that rise to at least 1,000 m (3,281 ft) above the seafloor, characteristically of conical form. The peaks are often found hundreds to thousands of meters below the surface, and are therefore considered to be within the deep sea. During their evolution over geologic time, the largest seamounts may reach the sea surface where wave action erodes the summit to form a flat surface. After they have subsided and sunk below the sea surface such flat-top seamounts are called "guyots" or "tablemounts".The Earth's oceans contain more than 14,500 identified seamounts of which 9,951 seamounts and 283 guyots, covering a total area of 8,796,150 km2 (3,396,210 sq mi), have been mapped but only a few have been studied in detail by scientists. Seamounts and guyots are most abundant in the North Pacific Ocean, and follow a distinctive evolutionary pattern of eruption, build-up, subsidence and erosion. In recent years, several active seamounts have been observed, for example Kamaʻehuakanaloa (formerly Lōʻihi) in the Hawaiian Islands. Because of their abundance, seamounts are one of the most common marine ecosystems in the world. Interactions between seamounts and underwater currents, as well as their elevated position in the water, attract plankton, corals, fish, and marine mammals alike. Their aggregational effect has been noted by the commercial fishing industry, and many seamounts support extensive fisheries. There are ongoing concerns on the negative impact of fishing on seamount ecosystems, and well-documented cases of stock decline, for example with the orange roughy (Hoplostethus atlanticus). 95% of ecological damage is done by bottom trawling, which scrapes whole ecosystems off seamounts. Because of their large numbers, many seamounts remain to be properly studied, and even mapped. Bathymetry and satellite altimetry are two technologies working to close the gap. There have been instances where naval vessels have collided with uncharted seamounts; for example, Muirfield Seamount is named after the ship that struck it in 1973. However, the greatest danger from seamounts are flank collapses; as they get older, extrusions seeping in the seamounts put pressure on their sides, causing landslides that have the potential to generate massive tsunamis.

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1. seamount

   A seamount is a submarine mountain, usually volcanic in nature, rising prominently from the seafloor but not reaching the water's surface. They are found in oceans around the world and can provide critical habitats for marine species.

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1. Seamount

   A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface, and thus is not an island. These are typically formed from extinct volcanoes that rise abruptly and are usually found rising from the seafloor to 1,000-4,000 meters in height. They are defined by oceanographers as independent features that rise to at least 1,000 metres above the seafloor. The peaks are often found hundreds to thousands of meters below the surface, and are therefore considered to be within the deep sea. There are an estimated 100,000 seamounts across the globe, with only a few having been studied. Seamounts come in all shapes and sizes, and follow a distinctive pattern of growth, activity, and death. In recent years, several active seamounts have been observed, for example Loihi in the Hawaiian Islands. Because of their abundance, seamounts are one of the most common oceanic ecosystems in the world. Interactions between seamounts and underwater currents, as well as their elevated position in the water, attract plankton, corals, fish, and marine mammals alike. Their aggregational effect has been noted by the commercial fishing industry, and many seamounts support extensive fisheries. There are ongoing concerns on the negative impact of fishing on seamount ecosystems, and well-documented cases of stock decline, for example with the orange roughy. 95% of ecological damage is done by bottom trawling, which literally scrapes whole ecosystems off seamounts.

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1. • Mountain

How to pronounce seamount?

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How to say seamount in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of seamount in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of seamount in Pythagorean Numerology is: 9

Examples of seamount in a Sentence

1. Thomas Shugart:

   The United States Navy did something similar to The United States Navy when The United States Navy replaced the bow of the damaged USS San Francisco, which ran aground on a seamount near Guam in 2005, with the bow of USS Honolulu, which was slated to be retired.

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