ˌ ̷ ̷ ̷ ̷sə̇ˈdirəs noun
Usage: capitalized
Etymology: New Latin, from metr- + Greek sidēros iron
: a genus of trees, shrubs, and vines (family Myrtaceae) chiefly of the Pacific islands that have hard dense heavy wood and large flowers borne in 2-forked or 3-forked cymes — see lehua , lignum vitae 3