The word "phlebin" is not a commonly used term in English, and it is not found in most dictionaries. However, based on the spelling, it can be pronounced as /ˈflɛbɪn/ (FLEB-in). This pronunciation reflects the sound of the first syllable, which includes a short "e" vowel sound followed by a voiced "b" consonant sound. The second syllable includes a short "i" vowel sound followed by an unvoiced "n" consonant sound. It is unclear what this word means or how it is used in a sentence.
An assumed pigment in venous blood, deoxidized hemoglobin.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.