English Explanatory Dictionary

isidium

English dictionary entry

Meanings

noun
  1. A vegetative reproductive structure present in some lichens; an outgrowth of the thallus surface, usually with a columnar structure, and consisting of both fungal hyphae and algal cells.

Word forms

isidium isidia

Etymology

According to OED, from a genus name Isidium (Acharius 1798), itself from the goddess Isis.

Derived words

isidiate
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