(noun) the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended
(noun) a green slightly translucent variety of chalcedony used as a gemstone
Definitions for Sheath
(noun) something that encloses another thing especially to protect it
(noun) a protective covering (as for a knife or sword)
(noun) an enveloping structure or covering enclosing an animal or plant organ or part