cal·pain 
(kălpān′)
(kălpān′)n.
A proteolytic enzyme regulated by the concentration of calcium ions.
[Probably CAL(CIUM) + P(ROTE)A(SE) + -IN.]
- take the law into (one's) own hands
- take the law into one's own hands
- take the law into own hands
- take the liberty
- take the mickey out of
- take the occasion
- take the piss out of
- take the plunge
- take the pulse of
- take the rap
- take the wind out of (one's) sails
- take the wind out of one's sails
- take the wind out of sails
- take time
- take to
- take to heart
- take to heels
- take to (one's) heels
- take to one's heels
- take to task
- take to the cleaners
- take to the woodshed
- take up
- take-up
- take up for