matter, substance - that which has mass and occupies space; "an atom is the smallest indivisible unit of matter"

body, organic structure, physical structure - the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

solid body substance - the solid parts of the body

bodily fluid, body fluid, liquid body substance, humour, humor - the liquid parts of the body

chromatin, chromatin granule - the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division the chromatin condenses into chromosomes

achromatin - the part of a cell nucleus that is relatively uncolored by stains or dyes

linin - an obsolete term for the network of viscous material in the cell nucleus on which the chromatin granules were thought to be suspended

ground substance, intercellular substance, matrix - the body substance in which tissue cells are embedded

humour, humor - (Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state; "the humors are blood and phlegm and yellow and black bile"