The word "peros" is spelled with a combination of two letter sounds, "p" and "r," followed by the vowel diphthong "eə" and the consonant sound "s." This phonetic transcription is /pəˈrɒs/. While this word may not be familiar to everyone, its correct spelling is important for those who encounter it in their reading or writing. Understanding and using the International Phonetic Alphabet (IPA) can help ensure accurate communication and avoid confusion in language.
By or through the mouth.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.