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Glite Dictionary
tall oil

tall oil

9.6
An oily product left from wood pulp during paper making used to make soap and oils for machines
  • noun
  • Specialized
translation icon : aceite de tall
  • Lubricants derived from tall oil have become more common in industrial applications.

Examples

  • The soap manufacturer used tall oil as a key ingredient in their production process.

  • The factory produces tall oil from wood pulp.

  • After extracting cellulose, tall oil is separated as a valuable byproduct from wood pulp.

  • Many soaps contain tall oil as an ingredient.

  • Manufacturers utilize tall oil as a key ingredient in making high-quality soaps.

  • The chemical industry relies on tall oil for its lubricants and surfactants.

  • Tall oil is often used in the production of biodiesel and other renewable fuels.

Surface Forms

tall oil singular
tall oils plural

Morphology

tall + oil

This is a specialized, lexicalized industrial term: the element 'tall' here does not mean 'high' but ultimately derives from a Scandinavian word for 'pine' and refers to a wood‑pulp/resin byproduct. A B1 learner who knows 'tall' (as 'high') and 'oil' would not be able to derive the technical meaning from the constituents, so the expression is not compositional for typical learners.

Etymology

Tall oil comes from a Swedish word: tall means 'pine' in Swedish. The oil was left over when makers turned pine wood into paper, so the name really means 'pine oil' and that is why we call this byproduct tall oil today.