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

• doggedly
• doggedness
• doggednesses
• dogger
• doggerel
• doggerels
• doggeries
• doggerman
• doggermen
• doggers
• doggery
• doggess
• doggesses
• doggie
• doggier
• doggies
• doggiest
• dogginess
• dogginesses
• dogging
• doggings
• doggish
• doggishly
• doggishness
• doggishnesses