A straddle is any set of offsetting positions on personal property. One example, is a put and call option on the same number of shares of a particular security, with the same exercise price and expiration date.
Definition of flack for English Language Learners. : a person whose job is to make people like or be interested in someone or something.
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.