caterpillar /katˈər-pi-lər/

1. A butterfly or moth grub
2. Extended to other insect larvae
3. An unproductive consumer (archaic)
4. (Caterpillar®) a tractor or other (esp earthmoving) vehicle running on endless articulated tracks made up of a series of flat metal plates

• unpeopling
• unpeppered
• unperceivable
• unperceivably
• unperceived
• unperceivedly
• unperceptive
• unperch
• unperched
• unperches
• unperching
• unperfect
• unperfected
• unperfection
• unperfections
• unperfectly
• unperfectness
• unperfectnesses
• unperforated
• unperformed
• unperforming
• unperfumed
• unperilous
• unperishable
• unperished