Noun
A
spike
,
wedge
,
or
peg
that
is
driven
into
a
rock
or
ice
surface
as
a
support
(
as
for
a
mountain
climber
).
Verb
To
put
pitons
into
a
rock
/
ice
to
facilitate
climbing
.
Proper noun
python
(
constricting
snake
)