isidium

[ ahy-sid-ee-uhm ]

noun,plural i·sid·i·a [ahy-sid-ee-uh]. /aɪˈsɪd i ə/. Botany.
  1. a coralloid outgrowth from the thallus in certain lichens.

Origin of isidium

1
1865–70; <New Latin, derivative of Isid- (stem of Isis) Isis (from the hornlike appearance of the growth); see -ium

Words Nearby isidium

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024