log 1 (lôg, l g)n. 1. a. A usually large section of a trunk or limb of a fallen or felled tree. b. A long thick section of trimmed, unhewn timber. 2. Nautical a. A device trailed from a ship to determine its speed through the water. b. A record of a ship's speed, its progress, and any shipboard events of navigational importance. c. The book in which this record is kept. 3. A record of a vehicle's performance, as the flight record of an aircraft. 4. A record, as of the performance of a machine or the progress of an undertaking: a computer log; a trip log. v. logged, log·ging, logs v.tr. 1. a. To cut down, trim, and haul the timber of (a piece of land). b. To cut (timber) into unhewn sections. 2. To enter in a record, as of a ship or an aircraft. 3. To travel (a specified distance, time, or speed): logged 30,000 air miles in April. 4. To spend or accumulate (time): had logged 25 years with the company. v.intr. Phrasal Verbs: To cut down, trim, and haul timber. log in/on To enter into a computer the information required to begin a session. log out/off To enter into a computer the command to end a session. [Middle English logge.] |
| log 2 (lôg, lg) n. A logarithm. |
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