28 entries under opening topic. ×

5
deep sea(noun, expression, crack, water)
5
ocean(noun, crack, water, rift)
5
water(noun, crack, rift, fissure)
4
deep(noun, crack, water, rift)
3
abyssal zones(noun, expression, crack, water)
3
abyssal zone(noun, expression, crack, water)
3
crack(noun, water, rift, fissure)
3
fissure(noun, crack, water, rift)
3
hadal zone(noun, expression, crack, water)
3
hadal zones(noun, expression, crack, water)
3
hole(noun, crack, water, rift)
3
hotspot(noun, crack, water, rift)
3
hotspots(noun, crack, water, rift)
3
marine habitat(noun, expression, crack, water)
3
marine habitats(noun, expression, crack, water)
3
mid-ocean ridge(noun, expression, crack, water)
3
mid-ocean ridges(noun, expression, crack, water)
3
ocean basin(noun, expression, crack, water)
3
ocean basins(noun, expression, crack, water)
3
rift(noun, crack, water, fissure)
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APASmart Define. (2015). hydrothermal vent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hydrothermal_vent/thesaurus/broader
ChicagoSmart Define. 2015. "hydrothermal vent thesaurus" https://smartdefine.org/hydrothermal_vent/thesaurus/broader (accessed September 28, 2026).
HarvardSmart Define 2015, hydrothermal vent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hydrothermal_vent/thesaurus/broader>.
MLASmart Define. "hydrothermal vent thesaurus" 20 March 2015. Web. 28 September 2026. <https://smartdefine.org/hydrothermal_vent/thesaurus/broader>