| estr | a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics |
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| estr | an antagonist for estrogen that is used in the treatment of breast cancer |
| estr | relating to or caused by estrogen |
| estr | a naturally occurring weak estrogenic hormone secreted by the mammalian ovary |
| estr | a naturally occurring weak estrogenic hormone secreted by the mammalian ovary |
| estr | (of lower mammals) showing or in a state of estrus |
| estr | applies to nonhuman mammals: a state or period of heightened sexual arousal and activity |