1. With undue hurry and confusion
   "a pell-mell dash for the train"
   - helter-skelter

1. In a wild or reckless manner
   "running pell-mell up the stairs"
   - harum-scarum

See also: hurried

• Collembola
• collembolan
• collenchyma
• collet
• collet chuck
• collide
• collide with
• collider
• collie
• collier
• colliery
• colligate
• colligation
• collimate
• collimation
• collimator
• collinear
• collins
• Collinsia
• Collinsia bicolor
• Collinsia heterophylla
• Collinsia parviflora
• Collinsia verna
• Collinsonia
• Collinsonia canadensis