Placenta and Tissue

Placenta noun - The vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus.

Tissue and placenta are semantically related. In some cases you can use "Tissue" instead a noun "Placenta".

Tissue noun - Part of an organism consisting of an aggregate of cells having a similar structure and function.

Placenta and tissue are semantically related. Sometimes you can use "Placenta" instead a noun "Tissue".