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1. Dictionary

   rock

   /rɒk/

   noun

   • 1. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil: "the beds of rock are slightly tilted"
   • ▪ a mass of rock projecting above the earth's surface or out of the sea: "there are dangerous rocks around the island" Similar cragclifftoroutcropoutcropping
   • ▪ any natural material, hard or soft (e.g. clay), having a distinctive mineral composition.
   • ▪ informal name for Gibraltar.
   • ▪ a name for Newfoundland informal Canadian
   • 2. a large piece of rock which has become detached from a cliff or mountain; a boulder: "the stream flowed through a jumble of rocks"
   • ▪ a stone of any size: North American "the crowd threw a few rocks and dispersed" Similar boulderstoneinformal:goolie
   • ▪ a kind of hard confectionery in the form of cylindrical peppermint-flavoured sticks: British "a stick of rock"
   • ▪ a precious stone, especially a diamond. informal Similar diamondprecious stonejewel
   • ▪ a small piece of crack cocaine: informal "crack sells for $20 a rock"
   • ▪ a man's testicles. vulgar slang
   • 3. used to refer to someone or something that is extremely strong, reliable, or hard: "the Irish scrum has been as solid as a rock" Similar foundationcornerstonesupportpropmainstaybackbonetower of strengthpillar of strengthbulwarkanchorsource of protectionsource of security
   • ▪ (especially with allusion to shipwrecks) a source of danger or destruction: "the new system is heading for the rocks"
   • 4. money. informal, dated US

   Word Origin Middle English: from Old French rocque, from medieval Latin rocca, of unknown ultimate origin.

   Derivatives

   • 1. rockless adjective
   • 2. rocklet noun
   • 3. rocklike adjective

   Scrabble Points: 10

   • R

     1

   • O

     1

   • C

     3

   • K

     5

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   More definitions, origin and scrabble points

2. www.britannica.com › science › rock-geologyRock | Definition, Characteristics, Formation, Cycle ...

   www.britannica.com › science › rock-geology

   • Cached

   Jun 18, 2024 · Rock is a naturally occurring and coherent aggregate of one or more minerals that forms the solid Earth. Learn about the three major classes of rock (igneous, sedimentary, and metamorphic) and how they are formed and transformed by the rock cycle.

   • Electrical Properties

     Rock - Electrical Properties: The electrical nature of a...

   • Sedimentation

     sedimentation, in the geological sciences, process of...

   • Basic Types of Magnetization

     Rock - Magnetic, Anisotropy, Remanence: There are six basic...

   • Intrusive

     intrusive rock, igneous rock formed from magma forced into...

   • Pyroclastic Rocks

     Other articles where pyroclastic rock is discussed: igneous...

   • Phaneritic

     Other articles where phaneritic texture is discussed: rock:...

   • Aphanitic

     In igneous rock …aid of a microscope (called aphanitic, from...

   • Diagenesis

     diagenesis, sum of all processes, chiefly chemical, by which...

3. Videos

   • 

     bbc.co.uk

     What is a rock? - BBC Bitesize

     27 Jul 2019

   • 

     8:01

     youtube.com

     3 Main Types of Rocks

     27 Mar 2020

     84.8K views

   • 

     10:52

     youtube.com

     3 Types of Rocks - Igneous, Sedimentary, Metamorphic rock | Geography

     9 Mar 2017

     1.3M views

   View all

4. www.britannica.com › art › rock-musicRock | Definition, History, Artists, Songs, & Facts | Britannica

   www.britannica.com › art › rock-music

   • Cached

   Jun 1, 2024 · Rock is a form of popular music that emerged in the 1950s and became the world's dominant musical genre by the end of the 20th century. It is difficult to define rock musically, but it is possible to identify its cultural significance and social impact.

   • Rock music, also called rock and roll, rock & roll, or rock ’n’ roll, is a form of popular music that emerged in the 1950s and is defined as “a for...
   • Folk rock is a hybrid musical style of rock music and folk music that emerged in the United States and Britain in the mid-1960s. Folk musicians, le...
   • Some famous early rock music artists include Elvis Presley, The Beatles, Bob Dylan, and Jimi Hendrix.

5. en.wikipedia.org › wiki › Rock_musicRock music - Wikipedia

   en.wikipedia.org › wiki › Rock_music

   • Cached

   4 days ago · Rock is a broad genre of popular music that originated as "rock and roll" in the United States in the late 1940s and early 1950s, developing into a range of different styles from the mid-1960s, particularly in the United States and the United Kingdom.

6. People also ask

   What is rock music?

   • The Collins Cobuild English Dictionary, based on a vast database of British usage, suggests that “rock is a kind of music with simple tunes and a very strong beat that is played and sung, usually loudly, by a small group of people with electric guitars and drums,” but there are so many exceptions to this description that it is practically useless.

   Rock | Definition, History, Artists, Songs, & Facts | Britannica

   www.britannica.com/art/rock-music

   See all results for this question

   What is a rock in geology?

   • rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. Rocks are commonly divided into three major classes according to the processes that resulted in their formation.

   Rock | Definition, Characteristics, Formation, Cycle, Classification

   www.britannica.com/science/rock-geology

   See all results for this question

   What does rock mean historically?

   • The trouble is that the term rock describes an evolving musical practice informed by a variety of nonmusical arguments (about creativity, sincerity, commerce, and popularity). It makes more sense, then, to approach the definition of rock historically, with examples. The following musicians were crucial to rock’s history.

   Rock | Definition, History, Artists, Songs, & Facts | Britannica

   www.britannica.com/art/rock-music

   See all results for this question

   Where did rock come from?

   • It has its roots in 1940s and 1950s rock and roll, a style that drew directly from the blues and rhythm and blues genres of African-American music and from country music. Rock also drew strongly from genres such as electric blues and folk, and incorporated influences from jazz and other musical styles.

   Rock music - Wikipedia

   en.wikipedia.org/wiki/Rock_music

   See all results for this question

   When did rock start?

   • Rock is a broad genre of popular music that originated as "rock and roll" in the United States in the late 1940s and early 1950s, developing into a range of different styles from the mid-1960s, particularly in the United States and the United Kingdom.

   Rock music - Wikipedia

   en.wikipedia.org/wiki/Rock_music

   See all results for this question

   What is roots rock?

   • Roots rock is the term now used to describe a move away from what some saw as the excesses of the psychedelic scene, to a more basic form of rock and roll that incorporated its original influences, particularly blues, country and folk music, leading to the creation of country rock and Southern rock.

   Rock music - Wikipedia

   en.wikipedia.org/wiki/Rock_music

   See all results for this question

7. www.livescience.com › planet-earth › geologyWhat's the difference between a rock and a mineral? | Live ...

   www.livescience.com › planet-earth › geology

   • Cached

   Jun 11, 2024 · Rocks are aggregates of two or more minerals. The rock pictured above was found in a mine and contains raw gold, which is a mineral of chemical formula Au.(Image credit: plastic_buddha...

8. www.britannica.com › science › rock-geologyRock - Structure, Texture, Composition | Britannica

   www.britannica.com › science › rock-geology

   • Cached

   Jun 18, 2024 · Rock - Structure, Texture, Composition: Physical properties of rocks are of interest and utility in many fields of work, including geology, petrophysics, geophysics, materials science, geochemistry, and geotechnical engineering.

9. www.merriam-webster.com › dictionary › rockRock Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › rock

   • Cached

   1 day ago · Synonym Discussion of Rock. to move back and forth in or as if in a cradle; to cause to sway back and forth; to cause to shake violently… See the full definition

10. en.wikipedia.org › wiki › Origins_of_rock_and_rollOrigins of rock and roll - Wikipedia

    en.wikipedia.org › wiki › Origins_of_rock_and_roll

    • Cached

    Jun 14, 2024 · Rock and roll emerged as a defined musical style in the United States in the early to mid-1950s. It derived most directly from the rhythm and blues music of the 1940s, [1] which itself developed from earlier blues, the beat-heavy jump blues, boogie woogie, up-tempo jazz, and swing music.