1. Line marking the upper limit of tree growth in mountains or northern latitudes
   - timber line, tree line

Derived forms: timber lines, timberlines

Type of: line

Encyclopedia: Timberline

• Spanish lime tree
• Spanish mackerel
• Spanish monetary unit
• Spanish moss
• Spanish needles
• Spanish oak
• Spanish onion
• Spanish oyster plant
• Spanish paprika
• Spanish people
• Spanish peseta
• Spanish pointer
• Spanish psyllium
• Spanish rice
• Spanish Sahara
• Spanish tamarind
• Spanish tea
• Spanish War
• Spanish-American War
• Spanish-speaking
• spank
• spanker
• spanking
• spanner
• spar