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- DictionaryLat·er·al line/ˈladərəl/
noun
- 1. a visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration.
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noun
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The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. L... Wikipedia