No.
A Trackball.
trac ball.
As long as it is in all capitals, the word "SWIMS" can be read upside down.
Well when a word is shown in front of a mirror the reflection of the word upside down. This is called mirror image.
mom
"Upside down" has three morphemes: up (preposition), side (root word), and down (adverb).
A trackball is basically a computer mouse that has been turned upside down. This allows the mouse to sit in a stationary position, requiring less desk space.
trackball
a palindrome
Turned upside down.
SWIMS