| BIR | an agent or device intended to prevent conception |
|---|---|
| BIR | a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception |
| BIR | a defect that is present at birth |
| BIR | a regularly recurrent spasm of pain that is characteristic of childbirth |
| BIR | limiting the number of children born |
| BIR | the ratio of live births in an area to the population of that area |
| BIR | a social reformer who advocates birth control and family planning |
| BIR | a social reformer who advocates birth control and family planning |
| BIR | limiting the number of children born |
| BIR | an anniversary of the day on which a person was born |
| BIR | the date on which a person was born |
| BIR | decorated cake served at a birthday party |