The word "stelleroid" is spelled with two L's and an E in the middle, despite being derived from the word "stellar". This is due to the fact that the suffix "-oid" signifies a likeness or similar form, and the spelling of "stell" was altered to better fit the suffix. The IPA phonetic transcription for "stelleroid" is /stɛlərɔɪd/, with emphasis on the second syllable. This unique spelling allows for clear pronunciation and understanding of the word's definition.