Definition of Rock tripe
(Bot.)
a
kind
of
lichen
(
Umbilicaria
Dillenii
)
growing
on
rocks
in
the
northen
parts
of
America
,
and
forming
broad
,
flat
,
coriaceous
,
dark
fuscous
or
blackish
expansions
.
It
has
been
used
as
food
in
cases
of
extremity
.
See also:
Rock
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Rock oil
Rock ousel
Rock parrakeet
Rock pigeon
Rock pipit
Rock plover
Rock ptarmigan
Rock rabbit
Rock ruby
Rock salt
Rock seal
Rock shaft
Rock shell
Rock snake
Rock snipe
Rock soap
Rock sparrow
Rock staff
Rock tar
Rock thrush
Rock trout
Rock warbler
Rock wren
Rockaway
Rockelay
Rocker
Rocker arm
Rockered
Rockery
Rocket
Rocket larkspur
Rocket scientist
Rocketer
Rockfish
Rockiness
Rocking
Rocking shaft
Rocking stone
Rocking-chair
Rocking-horse
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