| DAC | (trademark) a kind of polyester fabric |
|---|---|
| DAC | evergreen coniferous shrubs or trees of New Zealand to Malaysia and Philippines |
| DAC | New Zealand evergreen valued for its light easily worked wood |
| DAC | Australasian evergreen trees or shrubs |
| DAC | New Zealand shrub |
| DAC | New Zealand silver pine of conical habit with long slender flexuous branches |
| DAC | tall New Zealand timber tree |
| DAC | Tasmanian timber tree with yellow aromatic wavy-grained wood used for carving and ship building |
| DAC | type genus of the Dacrymycetaceae: fungi with a bifurcate basidium that lacks septa |
| DAC | a family of basidiomycetous fungi belonging to the order Tremellales having a bifurcate basidium that lacks septa |
| DAC | either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands |
| DAC | inflammation of the lacrimal sac causing obstruction of the tube draining tears into the nose |