The thin layer that surrounds and protects a developing embryo in mammals.

भ्रूण झिल्ली

English Usage: The fetal membrane plays a crucial role in the development of the embryo during pregnancy.

Hindi Usage: भ्रूण झिल्ली गर्भावस्था के दौरान भ्रूण के विकास में महत्वपूर्ण भूमिका निभाती है.