Rostelate or Rostellate: How To spell?

The word Rostelate is misspelled against Rostellate, an adjective meaning "Having a rostellum, or small beak; terminating in a beak."

Rostellate has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings roste & ate which should not be misspelled with single 'L'
Wrong Spelling:  roste-l-ate 
Correct Spelling:  roste-ll-ate 
Find more incorrect spellings of Rostellate to spell right way.