| A | B |
|---|
| porous | many pores which may contain water or air |
| plastic/plasticity | workability; (contains enough moisture) ability to form and maintain any shape without sagging or cracking |
| shrinkage | contraction of clay in drying or firing |
| grog | ground fired clay, mixed with moist clay to reduce shrinkage, add strength and texture |
| elasticity | the ability to be maneuvered without breaking |
| leather hard | the stage when most of the moisture has left the clay body but it can be altered (carving, burnishing) |
| bone dry | completely air dried |
| greenware | all ceramic ware prior to first firing (raw ware) |
| bisqueware | the stage of ceramic ware after the first firing |
| slip | clay in liquid suspension |
| coil construction | snake-like pieces of clay joined together to create a ceramic vessel |
| slab construction | technique using flat pieces of clay to create a ceramic piece |
| pinch pot | the method of creatin a ceramic piece by inserting thumb into a bal of clay and pinching outward |
| scoring | roughing up the surfaces of clay to be joined |
| welding | joining scored pieces of clay together |
| wedging | kneading of clay with heal of hand to create consistency and remove air bubbles |
| glaze | silica based material that melts to a glassy coating on pottery |
| underglaze | ued to add decorative color to pottery prior to firing (stays put and does not melt) |
| wax resist | used to cover bases, lids, and lips to avoid glass adhering to these surfaces |
| paddling | technique of forming pottery by slapping the clay with wooden tools |
| throwing technique | method of creating ceramic pieces on the potter's wheel |
| foot | ring like base on a ceramic vessel |
| raku (translation) | pleasure, comfort, happiness, enjoyment |
| quenching | final step in raku process where pieces are cooled in containers of water |
| blistering | bursting of bubbles and craters in glaze |
| crawling | glaze creeping, rolling, beading or buckling |
| crazing | glaze defect of crackling. If intentional then it's called crackle |
