-tropin
noun combining form
variants or -trophin
: hormone
gonadotropin
somatotropin
Word History
Etymology
-tropin, alteration of -trophin, from -trophic + -in entry 1
- a couple of
- a crashing halt
- a crying need
- a crying shame
- a cut above
- a day
- a day to remember
- a dead cert
- a deuce of
- a deuce of a time
- a devil of
- a devil of a time
- a dibs
- a difference of opinion
- a dime a dozen
- a dog's breakfast
- a dog's life
- a dose of someone's own medicine
- a drop in the ocean
- a due
- A end
- a face like thunder
- a fair crack of the whip
- a fair hearing
- a fair shake