1. sidetrack; siding
2. lateral line (of a fish)
Wikipedia definition
3. Lateral lineThe lateral line is a system of sense organs found in aquatic vertebrates, chiefly fish, used to detect movement and vibration in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion, movement and transduce these signals into electrical impulses via excitatory synapses. Lateral lines serve an important role in schooling behavior, predation, and orientation.
Read “Lateral line” on English Wikipedia
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Read “Lateral line” on DBpedia


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