Definition of marsh treader in US English:
 marsh treader
nounmärSH ˈtredərmɑrʃ ˈtrɛdər
North American another term for water measurer
 Example sentencesExamples
-  Maybe spider or marsh treader are better experts in practical relativity effects, because they're able to estimate the location and speed of objects just using a transversal mechanical waves.
 -  Unlike their fast cousins, the water striders, marsh treaders can walk very slowly on the water's surface. As a result, they seem to hunt in slow motion.
 -  Marsh treaders are fairly common and have been found throughout the world.
 -  The elongate head of the marsh treader also differs from the relatively short head of the water scorpion.
 -  Marsh treaders are also referred to as water measurers. They are semi-aquatic, because they skate over the surface of slow-moving water.