IPA: /bəˈsɪdiəm/
KK: /bəˈsɪdɪəm/
A small, club-shaped structure found in certain fungi that produces spores. It is a key feature of a group of fungi known as basidiomycetes.
The mushroom's gills contain many basidia, each ready to release spores into the air.
Basidium → It is formed from "basis" (from Greek "βάσις", meaning base or foundation) and the diminutive suffix "-idium" (indicating a small or lesser form). The word "basidium" refers to a small base or structure, specifically in fungi where it supports the reproductive cells.
Think of 'basis' meaning base, and the '-idium' indicating a smaller form — a basidium is a small base structure in fungi.