LOG

log

(noun) measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship’s speed through the water

log

(noun) a written record of events on a voyage (of a ship or plane)

log

(noun) a written record of messages sent or received; “they kept a log of all transmission by the radio station”; “an email log”

logarithm, log

(noun) the exponent required to produce a given number

log

(noun) a segment of the trunk of a tree when stripped of branches

log

(verb) enter into a log, as on ships and planes

log, lumber

(verb) cut lumber, as in woods and forests

Source: WordNet® 3.1

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Etymology 1

Noun

log (plural logs)

The trunk of a dead tree, cleared of branches.

Any bulky piece as cut from the above, used as timber, fuel etc.

A unit of length equivalent to 16 feet, used for measuring timber, especially the trunk of a tree.

Anything shaped like a log; a cylinder.

(nautical) A floating device, usually of wood, used in navigation to estimate the speed of a vessel through water.

(figuratively) A blockhead; a very stupid person.

(surfing slang) A heavy longboard.

(figuratively) A rolled cake with filling.

(mining) A weight or block near the free end of a hoisting rope to prevent it from being drawn through the sheave.

(vulgar) A piece of feces.

(vulgar) A penis.

Hyponyms

• (nautical): chip log, taffrail log

• (rolled cake): Swiss roll, Yule log

Verb

log (third-person singular simple present logs, present participle logging, simple past and past participle logged)

(transitive) To cut trees into logs.

(transitive) To cut down (trees).

(intransitive) To cut down trees in an area, harvesting and transporting the logs as wood.

Synonyms

• (logbook)

Etymology 2

Noun

log (plural logs)

A logbook, or journal of a vessel (or aircraft)'s progress

A chronological record of actions, performances, computer/network usage, etc.

(computer science) Specifically, an append-only sequence of records written to file.

Verb

log (third-person singular simple present logs, present participle logging, simple past and past participle logged)

(transitive) To make, to add an entry (or more) in a log or logbook.

(transitive) To travel (a distance) as shown in a logbook

(transitive) To travel at a specified speed, as ascertained by chip log.

Etymology 3

Verb

log (third-person singular simple present logs, present participle logging, simple past and past participle logged)

(obsolete) To move to and fro; to rock.

Etymology 4

Noun

log (plural logs)

(historical units of measure) A Hebrew unit of liquid volume (about 1/3 liter).

Meronyms

• cab, kab (4 logs); hin (12 logs); bath (72 logs); cor, kor, homer, chomer (720 logs)

Etymology 5

Noun

log (plural logs)

logarithm.

(sciences) A difference of one in the logarithm, usually in base 10.

Anagrams

• Glo.

Source: Wiktionary

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Log, n. Etym: [Heb. log.]

Definition: A Hebrew measure of liquids, containing 2.37 gills. W. H. Ward.

Log, n. Etym: [Icel. lag a felled tree, log; akin to E. lie. See Lie to lie prostrate.]

1. A bulky piece of wood which has not been shaped by hewing or sawing.

2. Etym: [Prob. the same word as in sense 1; cf. LG. log, lock, Dan. log, Sw. logg.] (Naut.)

Definition: An apparatus for measuring the rate of a ship's motion through the water.

Note: The common log consists of the log-chip, or logship, often exclusively called the log, and the log line, the former being commonly a thin wooden quadrant of five or six inches radius, loaded with lead on the arc to make it float with the point up. It is attached to the log line by cords from each corner. This line is divided into equal spaces, called knots, each bearing the same proportion to a mile that half a minute does to an hour. The line is wound on a reel which is so held as to let it run off freely. When the log is thrown, the log-chip is kept by the water from being drawn forward, and the speed of the ship is shown by the number of knots run out in half a minute. There are improved logs, consisting of a piece of mechanism which, being towed astern, shows the distance actually gone through by the ship, by means of the revolutions of a fly, which are registered on a dial plate.

3. Hence: The record of the rate of ship's speed or of her daily progress; also, the full nautical record of a ship's cruise or voyage; a log slate; a log book.

4. A record and tabulated statement of the work done by an engine, as of a steamship, of the coal consumed, and of other items relating to the performance of machinery during a given time.

5. (Mining)

Definition: A weight or block near the free end of a hoisting rope to prevent it from being drawn through the sheave. Log board (Naut.), a board consisting of two parts shutting together like a book, with columns in which are entered the direction of the wind, course of the ship, etc., during each hour of the day and night. These entries are transferred to the log book. A folding slate is now used instead.

– Log book, or Logbook (Naut.), a book in which is entered the daily progress of a ship at sea, as indicated by the log, with notes on the weather and incidents of the voyage; the contents of the log board. Log cabin, Log house, a cabin or house made of logs.

– Log canoe, a canoe made by shaping and hollowing out a single log.

– Log glass (Naut.), a small sandglass used to time the running out of the log line.

– Log line (Naut.), a line or cord about a hundred and fifty fathoms long, fastened to the log-chip. See Note under 2d Log, n., 2.

– Log perch (Zoöl.), an ethiostomoid fish, or darter (Percina caprodes); -- called also hogfish and rockfish.

– Log reel (Naut.), the reel on which the log line is wound.

– Log slate. (Naut.) See Log board (above).

– Rough log (Naut.), a first draught of a record of the cruise or voyage.

– Smooth log (Naut.), a clean copy of the rough log. In the case of naval vessels this copy is forwarded to the proper officer of the government.

– To heave the log (Naut.), to cast the log-chip into the water; also, the whole process of ascertaining a vessel's speed by the log.

Log, v. i. [imp. & p. p. Logged; p. pr. & vb. n. Logging.] (Naut.)

Definition: , To enter in a ship's log book; as, to log the miles run. J. F. Cooper.

Log, v. i.

1. To engage in the business of cutting or transporting logs for timber; to get out logs. [U.S.]

2. To move to and fro; to rock. [Obs.]

Source: Webster’s Unabridged Dictionary 1913 Edition

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