birth spacingn. the interval of time between the births of children in a family; (also) the action or practice of planning such intervals; = child spacingn. at childn. Compounds 1b.
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1924 Jrnl. Mental Sci.70 129 True birth control (which includes birth spacing) can only be soundly directed by the medical practitioner.
2003 J. James in C. Squire Social Context of Birth vi. 93 The great majority..of refugee women..come from a culture of short birth spacing.