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The Collaborative International Dictionary
Salicaceous

Salicaceous \Sal`i*ca"ceous\ (s[a^]l`[i^]*k[=a]"sh[u^]s), a. [L. salix, -icis, the willow.] Belonging or relating to the willow.

Wiktionary
salicaceous

a. Belonging or relating to the willow.