- belonging to the plant family Pinaceae.
Compare pine family.
Origin of pinaceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- of, relating to, or belonging to the Pinaceae, a family of conifers with needle-like leaves: includes pine, spruce, fir, larch, and cedar
C19: via New Latin from Latin pīnus a pine