steroid hormone estrogen/estrogen analog 2013-05-07T15:32:52Z Any of the naturally-occuring, primary female sex hormones or related synthetic molecules with the capacity to perform the same function(s), i.e. to bind to estrogen receptors and stimulate or control the development and maintenance of female sex characteristics. CHEBI:50114 Not4Curation XCO:0000294 experimental_condition_ontology jsmith