of or like an ; immeasurable; unfathomable.
of or relating to the biogeographic zone of the ocean bottom between the bathyal and hadal zones: from depths of approximately 13,000 to 21,000 feet (4000 to 6500 meters).
In their morphological characters they gradually approach the pelagic forms upwards and the abyssal downwards.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) Ernst Haeckel
Dimya; recent in abyssal depths and fossil since the Jurassic.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 1 Various
Such a rock is necessarily oceanic; but more than this, it is abyssal.
The Story of the Earth and Man J. W. Dawson
No other mountains in the world are at once so continuously lofty and so near a coast which drops off to abyssal depths.
The Andes of Southern Peru Isaiah Bowman
They are the summits of very lofty mountains which have their bases in an abyssal ocean.
Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 3 Various
Some of the limestones are made of Foraminifera, together with Radiolaria, and indicate a subsidence to abyssal depths.
Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 2 Various
Oceanic islands are those, usually very small, found in the midst of the ocean, with abyssal depth all about.
Evolution Joseph Le Conte
All are dark in color, brown, blue or violet marking the abyssal species.
Zoology: The Science of Animal Life Ernest Ingersoll
When Dr. Morton said there were abyssal fish in the lagoon, I knew why they’d be there.
Creatures of the Abyss Murray Leinster
The known deposits all point to shallow waters of epicontinental seas; no abyssal formations have been recognized.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 Various
of or belonging to the ocean depths, esp below 2000 metres (6500 feet): abyssal zone
(geology) another word for plutonic
1690s, used especially of the zone of ocean water below 300 fathoms, from abyss + -al (1). Though the 19th century, abysmal was more common in oceanography.
Relating to the greatest depths of the oceans and to the organisms that live there. The abyssal zone encompasses all depths below 4,000 m (13,120 ft).
Relating to the region of the ocean bottom between the bathyal and hadal zones, from depths of approximately 2,000 to 6,000 m (6,560 to 19,680 ft). The abyssal zone includes nearly two-thirds of the Earth’s surface.
- Abyssal plain
noun a large area of extremely flat or gently sloping ocean floor just offshore from a continent, at depths of 13,000-20,000 feet Examples The abyssal plains begin where the continental margins end. Several species of worms, shrimp, brittle stars, sea cucumbers, and fish live in abyssal plains. Usage Note geography
former name of (def 1). (def 2). Contemporary Examples In The Abyssinian he tells the story of a diplomatic mission from Louis XIV of France to the King of Abyssinia. The Thief of Words: Starling Lawrence Jill Bialosky October 10, 2013 Historical Examples Abyssinia proper is an elevated region, with a general slope to the […]
former name of (def 1). (def 2). Contemporary Examples In The abyssinian he tells the story of a diplomatic mission from Louis XIV of France to the King of Abyssinia. The Thief of Words: Starling Lawrence Jill Bialosky October 10, 2013 Since 1996, Bolding has been director of the Chancel Choir (renamed The Inspirational Voices […]
- Abyssinian banana
a large, treelike Ethiopian plant, Ensete ventricosum, of the banana family, having leaves about 15 feet (4 meters) long, whitish flowers with reddish-brown bracts, and dry, inedible fruit.