ˈtəsə̇k, -sēk noun
( -s )
Etymology: origin unknown
1.
a. : a dense tuft (as of grass or hair)
b. : a small hummock of more solid ground in marsh or bog usually covered with and bound together by the roots of low vegetation (as grasses or sedges)
raised tussocks of blueberries
crossed the marsh by jumping from tussock to tussock
c. also tussock land chiefly New Zealand : land covered with tussock grasses
d. : tussock sedge
2. : tussock moth