Term: heartwood: the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: wainscot: panel forming the lower part of an interior wall when it is finished differently from the rest of the wall
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: passive source: an informant who is not assigned to obtain specific intelligence but who routinely passes on whatever information he or she has
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: lego: (trademark) a child's plastic construction set for making mechanical models
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: oort cloud: (astronomy) a hypothetical huge collection of comets orbiting the sun far beyond the orbit of Pluto; perturbations (as by other stars) can upset a comet's orbit and may send it tumbling toward the sun
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: exemption: an act exempting someone
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: plantigrade mammal: an animal that walks with the entire sole of the foot touching the ground as e.g. bears and human beings
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: walkabout: a walking trip or tour
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: tempestuousness: a state of wild storminess
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: goatsucker: mainly crepuscular or nocturnal nonpasserine birds with mottled greyish-brown plumage and large eyes; feed on insects
Broader: material: the tangible substance that goes into the makeup of a physical object | Unrelated: cheapskate: a miserly person