'Barrel Chest': An Explainer Eli Hendel, M.D. / @Lung_doctor, Health Professional The term âbarrel chestâ has been used frequently in medical literature, typically to describe a finding during a physical examination. It is also a term used in text books and clinical papers describing an attribute that is suggestive of a clinical process.
An anvil is a heavy block of iron or steel that blacksmiths use to shape metal. It's durable enough to withstand red hot metals and repeated hammer blows, but you don't want your foot to be under if it falls off the table.
SYNONYMS OR RELATED TERMS: percussion method, percussion flaking. CATEGORY: lithics. DEFINITION: Any of the methods used to strike a flake from a core in the making of stone tools; the reduction of a stone core by hitting it with a hammerstone or bone.Direct percussion is hitting a core with a hammer. Indirect percussion uses a punch between the core and the hammer.Anvil percussion (block on block) is the striking of a core against a fixed hardstone anvil. Bipolar percussion involves resting the core on an anvil and striking it with a hammer, making a flake with a bulb of percussion on each end.EFINITION: A technique used in the manufacture of chipped-stone artifacts in which flakes are produced by striking a core with another stone, a hammerstone, or by striking the core against a fixed stone or anvil in order to dislodge a flake.