The word "oikoid" may look unusual, but its spelling can be explained through IPA phonetic transcription. The first two letters, "oi," are pronounced as a diphthong, like "oy" ( /ɔɪ/ ). The "k" and "oid" are pronounced as in the word "coid" ( /kɔɪd/ ). Thus, the complete pronunciation of "oikoid" is /ɔɪkɔɪd/ . This word is derived from Greek, meaning "house-like" or resembling a home. While it may not be a commonly used word, understanding its phonetic transcription can aid in proper pronunciation.
Ecoid.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.