Antena or Antenna: How To spell?
The word Antena is misspelled against Antenna, a noun meaning "A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids."
Antenna has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings ante & a which should not be misspelled with single 'N'
Wrong Spelling:  ante-n-a  Correct Spelling:  ante-nn-a 
Explore spell check of Antenna to spell without errors.