[mod.L., a. Gr. λῆδον mastic.] A genus of ericaceous shrubs, commonly known as Labrador tea, used in the pharmacopœia. Oil of ledum or ledum-oii, ledum camphor, products obtained from L. palustre.
1834. Good, Study Med. (ed. 4), IV. 456. Infuse four ounces of the ledum in a quart of hot water.
1858. Thoreau, Winter (4 Feb.), 339. The ledum bears a general resemblance to the water andromeda.
1865. Watts, Dict. Chem., Ledum, oil of … obtained by distilling the leaves of Ledum palustre, with water.
