Materials & Substances

hank C1

/hæŋk/ a coil, loop, or bundle of yarn, rope, hair, or other long flexible material M S

crystal C1

/ˈkɹɪstəl/ A clear, solid mineral form with a regular geometric shape; high-quality clear glass. M S

scum C1

/skʌm/ a film of foam, dirt, impurities, or vegetation that forms on the surface of a liquid M S

rod C1

/ɹɑd/ A long, thin, straight bar or stick of wood or metal. M S

magnetic C1

/mæɡˈnɛt.ɪk/ Having the properties of a magnet, or able to attract metal such as iron. M S

grease C1

/ɡɹis/ a thick oily or fatty substance, especially one used to lubricate machinery M S

hydrogen C1

/ˈhaɪdɹəd͡ʒ(ə)n/ The lightest chemical element (symbol H), a colorless, odorless, highly flammable gas. M S

flint C1

/flɪnt/ a hard gray or black stone that can produce sparks when struck M S

plumbing C1

/ˈplʌmɪŋ/ The pipes and fixtures that carry water, gas, or sewage in a building. M S

duct C1

/dʌkt/ a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance M S

synthetic C1

/sɪnˈθɛtɪk/ Made artificially by chemical processes rather than coming from nature. M S

morocco C1

/məˈrɑkoʊ/ a soft, durable leather, traditionally goatskin and often pebble-grained, used for fine bookbindings and luxury goods M S

pipeline C1

/ˈpaɪpˌlaɪn/ A long pipe used to carry oil, gas, or water over a distance. M S

fatigue C1

/fəˈtiːɡ/ A feeling of being very tired, usually after hard physical or mental effort M S

aquarium C1

/əˈkwɛɹ.i.jəm/ A glass tank or bowl filled with water for keeping fish and other water animals. M S

plaque C1

/plak/ A flat piece of metal, stone, or wood with writing on it, fixed to a wall or monument to remember a person or event. M S

methane C1

/ˈmɛθeɪn/ the simplest hydrocarbon, CH4, a colorless flammable gas that is the principal component of natural gas and a powerful greenhouse gas M S

porcelain C1

/ˈpɔːrsəlɪn/ a hard, fine, usually white and translucent ceramic fired at a high temperature M S

wick C1

/wɪk/ a cord or strip in a candle or lamp that draws fuel upward and burns at its tip M S

neutralize C1

/ˈnutɹəˌlaɪz/ To stop something from having an effect by balancing it out. M S

wad C1

/wɑːd/ a small, compact mass of soft material, such as cotton, paper, or cloth M S

nugget C1

/ˈnʌɡ.ɪt/ a naturally occurring solid lump of a precious metal, especially gold M S

consistency C1

/kənˈsɪstənsi/ The quality of always behaving or performing in the same way. M S

chlorine C1

/ˈklɔːr.iːn/ the chemical element with atomic number 17, a toxic greenish-yellow halogen gas in its elemental form M S

asphalt C1

/ˈæsfɑːlt/ a black, sticky form of bitumen found naturally or left after petroleum is refined M S

indicator C1

/ˈɪndəˌkeɪtɝ/ A sign or measurement that shows what a situation is like. M S

asbestos C1

/æzˈbɛs.təs/ a commercial and legal name for a group of six naturally occurring fibrous silicate minerals M S

chisel C1

/ˈt͡ʃɪzəl/ A hand tool with a sharp flat blade, used for cutting or shaping wood, stone, or metal. M S

lithium C1

/ˈlɪθ.i.əm/ the chemical element with symbol Li and atomic number 3, a soft, silvery-white, highly reactive alkali metal and the lightest metal M S

garnet C1

/ˈɡɑːrnɪt/ any of a group of hard silicate minerals, commonly dark red and often cut as gemstones M S

starch C1

/stɑɹtʃ/ a complex carbohydrate stored by plants and found abundantly in foods such as grain and potatoes M S

ebony C1

/ˈɛbəni/ a dense, hard, usually very dark wood obtained from several tropical trees M S

resin C1

/ˈɹɛzɪn/ A sticky substance produced by some trees and plants, used in varnishes, glues, and other products. M S

tinder C1

/ˈtɪndɚ/ dry, easily combustible material used to start a fire M S

wicker C1

/ˈwɪk.ɚ/ flexible twigs, cane, or similar plant material woven to make baskets, furniture, and other objects, or the woven work itself M S

varnish C1

/ˈvɑɹnɪʃ/ a transparent liquid coating that dries to form a hard, protective, usually glossy surface M S

cobalt C1

/ˈkoʊbɔlt/ the chemical element with atomic number 27, a hard silvery-blue metal used in alloys, batteries, magnets, and pigments M S

impervious C1

/ɪmˈpɝ.vi.əs/ Not affected or influenced by something, such as criticism or emotion. M S

linoleum C1

/lɪˈnoʊ.li.əm/ a durable floor covering traditionally made from solidified linseed oil on a canvas or similar backing M S

hydrochloric C1

/ˌhaɪ.droʊˈklɔːr.ɪk/ of, relating to, or containing hydrochloric acid, the aqueous form of hydrogen chloride M S

graphite C1

/ˈɡɹæfaɪt/ a soft, dark allotrope of carbon whose atoms form loosely stacked hexagonal layers, used in pencils, lubricants, electrodes, and some nuclear reactors M S

acetone C1

/ˈæs.ə.toʊn/ a colorless, volatile, flammable liquid that is the simplest ketone and is widely used as a solvent M S

chromium C1

/ˈkroʊ.mi.əm/ the chemical element with atomic number 24 and symbol Cr, a hard, lustrous metal used especially in alloys and protective plating M S

gypsum C1

/ˈdʒɪpsəm/ a soft white or colorless mineral consisting of hydrated calcium sulfate, widely used to make plaster, cement, and wallboard M S

cadmium C1

/ˈkæd.mi.əm/ the soft, silvery-white, toxic chemical element with symbol Cd and atomic number 48 M S

corrode C1

/kəˈɹoʊd/ to destroy or be gradually destroyed by a chemical reaction, especially oxidation or acid M S

gingham C1

/ˈɡɪŋ.əm/ a lightweight cotton fabric woven from dyed and white yarn, typically in checks M S

repellant C1

A substance used to keep insects or animals away. M S

earthen C1

/ˈɝθən/ made of baked clay M S

potash C1

/ˈpɑːtæʃ/ potassium carbonate or an impure mixture of potassium salts formerly obtained from wood ashes M S

ingot C1

/ˈɪŋɡət/ metal that is cast in the shape of a block for convenient handling M S

gallium C1

/ˈɡæliəm/ a chemical element (symbol Ga) with an atomic number of 31; a soft bluish metal. M S

neutralization C1

/ˌnuːtɹəlaɪˈzeɪʃən/ The act of stopping something from having an effect by balancing it out. M S

nitrite C1

/ˈnaɪ.tɹaɪt/ the radical -NO2 or any compound containing it (such as a salt or ester of nitrous acid) M S

aqueous C1

/ˈeɪkwiəs/ consisting of, containing, or dissolved in water M S

indium C1

/ˈɪn.di.əm/ the soft, silvery-white chemical element with symbol In and atomic number 49 M S

solidification C1

/səˌlɪdəfəˈkeɪʃən/ the process by which a liquid or gas becomes solid, especially through cooling, drying, or crystallization M S

clayey C1

/ˈkleɪi/ containing a large amount of clay, or having the dense, sticky qualities of clay M S

einsteinium C1

/aɪnˈstaɪni.əm/ a synthetic radioactive chemical element with atomic number 99 and symbol Es M S

lacquerware C1

/ˈlækərˌwɛr/ decorative objects coated with lacquer for a glossy finish M S

manacle C1

/ˈmænəkəl/ a metal band, chain, or shackle for fastening someone's hands or ankles M S

velveteen C1

/ˈvɛlvətin/ a cotton fabric with a short, dense pile, resembling velvet M S

wale C1

/weɪl/ a ridge on a textured surface, such as fabric or skin, often raised or swollen M S

nitrous oxide C1

/ˌnaɪ.trəs ˈɑːk.saɪd/ a colorless, mildly sweet-smelling gas, N2O, used as an anesthetic and propellant and also emitted as a powerful greenhouse gas M S