| A | B |
|---|
| submersible | a craft that operates under water |
| oceanographers | scientists who specialize in the study of the sea |
| hydrothermal | relating to hot water |
| menagerie | a collection of wild animals |
| mesopelagic | having to do with ocean life in the "middle ocean," at a depth of 600-3000 feet |
| panoramic | visible over a wide area |
| prow | the forward part of a ship's body; the bow |
| starboard | the right-hand side of a ship as one faces forward |
| bioluminescence | the emission of light by certain living organisms |
| tentacles | long, elastic, narrow limbs of an animal, used to feel, grasp, or move |
| crustacean | one of a large group of hard-shelled animals that have jointed parts and live mostly in the water |
| sparse | not dense or crowded |
| gelatinous | like gelatin; thick and slow to flow |
| undulates | moves in a smooth, wavy motion |
| tether | a rope or chain that is secured to an object |
| unfathomable | impossible to measure |
