abnormal ejaculation anejaculation http://purl.bioontology.org/ontology/MEDDRA/10073936 http://purl.obolibrary.org/obo/HP_0012879 https://en.wikipedia.org/wiki/Anejaculation Inability to ejaculate, usually for pathological reasons. absence of ejaculation anorgasmic anejaculation ejaculation failure ejaculatory incompetence orgasmic anejaculation