名詞 basidium:

1. a small club-shaped structure typically bearing four basidiospores at the ends of minute projections; unique to basidiomycetes

ba.sid.i.um

n.（名詞）
【復數(shù)】 ba.sid.i.a[-ô-…]
A small, specialized club-shaped structure typically bearing four basidiospores at the tips of minute projections. The basidium is unique to basidiomycetes and distinguishes them from other kinds of fungi.
擔子：一個小的以球棒形結構為特點的，特別是在微小凸起的尖端帶有四個擔孢子，擔子菌是擔子獨有的，使它與區(qū)別于其它類的真菌

來源：
bas(i)-
bas(i)-
-idium [diminutive suff.] from Greek -idion
-idium [拉丁語小后綴] 源自 希臘語 -idion

【引伸】
basid.ial
adj.（形容詞）