noun
or oscillation ripple mark
: a symmetrical ripple on a bedding plane or on a sea or lake floor with sharp crest and broadly rounded trough formed by gregarious waves — compare current ripple
noun
or oscillation ripple mark
: a symmetrical ripple on a bedding plane or on a sea or lake floor with sharp crest and broadly rounded trough formed by gregarious waves — compare current ripple
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012