From Longman Dictionary of Contemporary Englishfamily size/pack etcfamily size/pack etca container or package containing a large amount of a product → family
Examples from the Corpus
family size/pack etc• To preserve expected standards as far as possible, marriage will be delayed and family size kept small.• A more sensitive indicator of fertility behaviour is the average completed family size of women born in the same year.• Education also increases equality in the marriage relationship, giving women more control over decisions concerning family size.• The good news is that in many countries the definition of what constitutes ideal family size is already evolving downward.• The decline in the general fertility rate was matched by a reduction in family size.• The most immediately striking point is family size.• It has a lot to do with not making a necessity of limiting family size.• Women there have abortions again and again because it is the only way they can limit their family size. 