plate tectonics — the theory that Earth's outer shell is divided into several plates that glide over the mantle, explaining continental drift and geological activity
Part of speech: NOUN
Definition: the theory that Earth's outer shell is divided into several plates that glide over the mantle, explaining continental drift and geological activity
Pronunciation (IPA): /pleɪt tɛkˈtɑnɪks/
Example Sentences
- My geology professor explained plate tectonics by comparing Earth to a cracked eggshell floating on soup.
- The discovery of plate tectonics revolutionized our understanding of earthquakes and volcanic eruptions.
- Without plate tectonics, Earth would be as boring as a pancake with no mountains or oceans.
plate tectonics
NOUN[/pleɪt tɛkˈtɑnɪks/]
the theory that Earth's outer shell is divided into several plates that glide over the mantle, explaining continental drift and geological activity

Plate tectonics slowly pushes two continents apart, forming a vast ocean rift.

Plate tectonics revealed through electronics!
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🎤Pronunciation
🌳Etymology
Origin
Plate derives from Latin platta, meaning a flat sheet or broad surface. Tectonics comes from Greek tekton, meaning carpenter or builder, combined with the suffix -ics to form an abstract noun referring to the art or science of building and structural arrangement. Together, plate tectonics describes the theory of Earth's structure composed of moving flat lithospheric plates.
Breakdown
plate (Latin platta: flat sheet or panel) + tectonics (Greek tekton: carpenter/builder + -ics: science or practice of). The term metaphorically represents Earth's 'builders'—the dynamic plates that construct and reshape the planetary surface.
🎵Rhyme
🔗Collocations
📝Examples
“My geology professor explained plate tectonics by comparing Earth to a cracked eggshell floating on soup.”
“The discovery of plate tectonics revolutionized our understanding of earthquakes and volcanic eruptions.”
“Without plate tectonics, Earth would be as boring as a pancake with no mountains or oceans.”
“The Ring of Fire around the Pacific Ocean is a direct result of plate tectonic activity.”
📚Related Words
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