Term: firedamp: a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: ague: successive stages of chills and fever that is a symptom of malaria
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: christian holy day: a religious holiday for Christians
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: illiterate: a person unable to read
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: standing room: room for passengers or spectators to stand
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: rose of sharon: Asiatic shrub or small shrubby tree having showy bell-shaped rose or purple or white flowers and usually three-lobed leaves; widely cultivated in temperate North America and Europe
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: mailsorter: a sorter for sorting mail according to the address
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: scopolia: genus of European perennial herbs yielding medicinal alkaloids
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: angwantibo: a kind of lemur
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: culver's root: a tall perennial herb having spikes of small white or purple flowers; common in eastern North America
Broader: gas: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | Unrelated: evanescence: the event of fading and gradually vanishing from sight