I. ̷ ̷ˈāshən noun
( -s )
Etymology: striate (II) + -ion
1.
a. : the fact or state of being striated
b. : arrangement of striae
2. : one of a series of parallel stripes or lines : stria
3. : one of the alternate light and dark bands occurring in the discharge in the positive column of a vacuum tube between limits of low pressure due to alternate loss and recovery of electron energy through ionization and acceleration
II. noun
: one of the alternate dark and light cross bands of a myofibril of striated muscle