log: Meaning and Definition of


Pronunciation: (lôg, log), [key]
— n., v., logged, log•ging.
  1. a portion or length of the trunk or of a large limb of a felled tree.
  2. something inert, heavy, or not sentient.
  3. any of various devices for determining the speed of a ship, as a chip log or patent log.
  4. any of various records, made in rough or finished form, concerning a trip made by a ship or aircraft and dealing with particulars of navigation, weather, engine performance, discipline, and other pertinent details; logbook.
  5. an account describing or denoting each shot as it is taken, written down during production and referred to in editing the film.
  6. a register of the operation of a machine.
  7. Also calleda record kept during the drilling of a well, esp. of the geological formations penetrated.
  8. any of various chronological records made concerning the use of a computer system, the changes made to data, etc.
  9. a written account of everything transmitted by a station or network.
  10. Also calleda lazy, dull-witted person; fool.
  1. to cut (trees) into logs: to log pine trees for fuel.
  2. to cut down the trees or timber on (land): We logged the entire area in a week.
  3. to enter in a log; compile; amass; keep a record of: to log a day's events.
  4. to make (a certain speed), as a ship or airplane: We are logging 18 knots.
  5. to travel for (a certain distance or a certain amount of time), according to the record of a log: We logged 30 miles the first day. He has logged 10,000 hours flying time.
  1. to cut down trees and get out logs from the forest for timber: to log for a living.
    1. Also,log on,sign on.Computers.to enter identifying data, as a name or password, into a multiuser system, so as to be able to do work with the system.
    2. to enter or include any item of information or data in a record, account, etc.
  2. to terminate a work session using a multiuser system, or a connection to such a system.


Pronunciation: (lôg, log), [key]
— n.
  1. logarithm.


Pronunciation: [key]
  1. var. ofbefore a vowel: logarithm.


Pronunciation: [key]
  1. var. of analog.


Pronunciation: [key]
  1. logic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
  • log (Thesaurus)