Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
erythropoiesis is a noun meaning "the process of producing red blood cells by the stem cells in the bone marrow". It carries one recorded sense.
the process of producing red blood cells by the stem cells in the bone marrow
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for erythropoiesis come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.