Tar board

Tar board
Tar Tar, n. [OE. terre, tarre, AS. teru, teoru; akin to D. teer, G. teer, theer, Icel. tjara, Sw. tj["a]ra, Dan. ti[ae]re, and to E. tree. [root]63. See {Tree}.] A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and having a varied composition according to the temperature and material employed in obtaining it. [1913 Webster]

{Coal tar}. See in the Vocabulary.

{Mineral tar} (Min.), a kind of soft native bitumen.

{Tar board}, a strong quality of millboard made from junk and old tarred rope. --Knight.

{Tar water}. (a) A cold infusion of tar in water, used as a medicine. (b) The ammoniacal water of gas works.

{Wood tar}, tar obtained from wood. It is usually obtained by the distillation of the wood of the pine, spruce, or fir, and is used in varnishes, cements, and to render ropes, oakum, etc., impervious to water. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • tar|board — «TAHR BRD, BOHRD», noun, adjective. –n. a strong millboard made especially of tarred rope. –adj. made of this …   Useful english dictionary

  • tar board — tolis statusas T sritis chemija apibrėžtis Degutu ar bitumu impregnuotas kartonas. atitikmenys: angl. bitumen sheet; felt paper; roofing felt; tar board; tar paper; tarred felt rus. толь …   Chemijos terminų aiškinamasis žodynas

  • mor|tar|board — «MR tuhr BRD, BOHRD», noun. 1. a flat, square board used by masons to hold mortar while working with it. 2. an academic cap with a close fitting crown topped by a stiff, flat, cloth covered square piece from which a tassel usually hangs, worn at… …   Useful english dictionary

  • Tar — Tar, n. [OE. terre, tarre, AS. teru, teoru; akin to D. teer, G. teer, theer, Icel. tjara, Sw. tj[ a]ra, Dan. ti[ae]re, and to E. tree. [root]63. See {Tree}.] A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and… …   The Collaborative International Dictionary of English

  • Tar water — Tar Tar, n. [OE. terre, tarre, AS. teru, teoru; akin to D. teer, G. teer, theer, Icel. tjara, Sw. tj[ a]ra, Dan. ti[ae]re, and to E. tree. [root]63. See {Tree}.] A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and …   The Collaborative International Dictionary of English

  • tar paper — tolis statusas T sritis chemija apibrėžtis Degutu ar bitumu impregnuotas kartonas. atitikmenys: angl. bitumen sheet; felt paper; roofing felt; tar board; tar paper; tarred felt rus. толь …   Chemijos terminų aiškinamasis žodynas

  • Tar paper — is a heavy duty paper used in construction. Tar paper is made by impregnating paper with tar, producing a waterproof material useful for roof construction. Roofing felt, one common type of tar paper, is a glass fiber or polyester fleece… …   Wikipedia

  • mor·tar·board — /ˈmoɚtɚˌboɚd/ noun, pl boards [count] : a hat with a flat square top that is worn for special ceremonies at some schools The students donned robes and mortarboards for graduation …   Useful english dictionary

  • Coal tar — Tar Tar, n. [OE. terre, tarre, AS. teru, teoru; akin to D. teer, G. teer, theer, Icel. tjara, Sw. tj[ a]ra, Dan. ti[ae]re, and to E. tree. [root]63. See {Tree}.] A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and …   The Collaborative International Dictionary of English

  • Mineral tar — Tar Tar, n. [OE. terre, tarre, AS. teru, teoru; akin to D. teer, G. teer, theer, Icel. tjara, Sw. tj[ a]ra, Dan. ti[ae]re, and to E. tree. [root]63. See {Tree}.] A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and …   The Collaborative International Dictionary of English

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