Tests done by OB-GYNs

• Thin innermost membranous sac enclosing the developing embryo in higher vertebrates (Amniota reptiles
• OB's perform them
• Birds
• Prenatal procedures, informally
• OB/GYNs perform them
• Prenatal tests, for short
• Some pregnancy tests, for short

Wiktionary Word definitions in Wiktionary
n. (context anatomy English) amnion

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Amnios \Am"ni*os\, n. Same as Amnion . [1913 Webster] ||