Term: pyrolusite: a mineral consisting of manganese dioxide; an important source of manganese
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: podicipedidae: coextensive with the order Podicipitiformes
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: tinker: a person who enjoys fixing and experimenting with machines and their parts
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: cervix: necklike opening to the uterus
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: subfamily: (biology) a taxonomic category below a family
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: genus heliopsis: oxeye
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: pagination: the system of numbering pages
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: bitumastic: a protective coating of asphalt and filter used on structural metals that are exposed to weathering
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: blue-eyed grass: plant with grasslike foliage and delicate blue flowers
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: positivism: the form of empiricism that bases all knowledge on perceptual experience (not on intuition or revelation)
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: beekeeper: a farmer who keeps bees for their honey