Term: yolk sac: membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
Broader: sac: a structure resembling a bag in an animal | Unrelated: true sago palm: Malaysian palm whose pithy trunk yields sago--a starch used as a food thickener and fabric stiffener; Malaya to Fiji
Broader: sac: a structure resembling a bag in an animal | Unrelated: pharmacopoeia: a collection or stock of drugs
Broader: sac: a structure resembling a bag in an animal | Unrelated: furniture company: a company that sells furniture
Broader: sac: a structure resembling a bag in an animal | Unrelated: lethal agent: an agent capable of causing death
Broader: sac: a structure resembling a bag in an animal | Unrelated: prey: animal hunted or caught for food
Broader: sac: a structure resembling a bag in an animal | Unrelated: cannaceae: coextensive with the genus Canna
Broader: sac: a structure resembling a bag in an animal | Unrelated: launderette: a self-service laundry (service mark Laundromat) where coin-operated washing machines are available to individual customers
Broader: sac: a structure resembling a bag in an animal | Unrelated: apparent motion: an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
Broader: sac: a structure resembling a bag in an animal | Unrelated: lupus vulgaris: tuberculosis of the skin; appears first on the face and heals slowly leaving deep scars
Broader: sac: a structure resembling a bag in an animal | Unrelated: maxim: a saying that is widely accepted on its own merits