Glossary: J

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Term Definition French
J-root A root, especially a seedling tap root, having a sharp bend greater than 90, shaped like a J. Frequently introduced by inappropriate planting. Racine en J
Joinery The fabrication of connections between wooden elements by woodworking techniques or the use of metal connectors. Menuiserie
Joist A horizontal support member typically smaller in cross-section than a beam; often uses dimension lumber or I-beams. Solive
Juices Organic liquid contained in certain plant and animal structures, eg, plant sap. Suc
Juvenile wood An inner layer of xylem surrounding the pith, in which the cells are smaller and/or less structurally developed than those of the outer xylem. The period during which it is formed is termed the juvenile period; it varies between individuals Bois de jeunesse
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