A visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration.
〔动〕侧线（鱼体一侧可见线纹，由多个能察觉压力及振动的）感觉器官组成
Example sentencesExamples
Sharks can detect vibrations in the water from a few 100m via their lateral lines, a series of pressure-sensitive organs extending along their flanks and over their faces.
Catsharks, like all other fishes, sense their environment hydrodynamically through the lateral line, a series of pores connecting a complex internal canal system with the outside water.
Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray.
The lateral line arches over the pectoral fins, and each scale has a prominent white or blue spot.
True roach have 9-10 rays in their dorsal fin and 42 to 45 scales along the lateral line.
Definition of lateral line in US English:
lateral line
noun
Zoology
A visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration.
〔动〕侧线（鱼体一侧可见线纹，由多个能察觉压力及振动的）感觉器官组成
Example sentencesExamples
Catsharks, like all other fishes, sense their environment hydrodynamically through the lateral line, a series of pores connecting a complex internal canal system with the outside water.
True roach have 9-10 rays in their dorsal fin and 42 to 45 scales along the lateral line.
Sharks can detect vibrations in the water from a few 100m via their lateral lines, a series of pressure-sensitive organs extending along their flanks and over their faces.
The lateral line arches over the pectoral fins, and each scale has a prominent white or blue spot.
Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray.