aecium

ae·ci·um  (s-m, sh-)

n. pl. ae·ci·a (-s-, -sh-)

A cuplike structure of some rust fungi that contains chains of aeciospores.

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[New Latin, from Greek aiki, injury, from aiks, unseemly, injurious : a-, not; see a-¹ + eikenai, to seem, be seemly.]

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aeci·al (s-l, -sh-) adj.

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aecium [ˈiːsɪəm], aecidium [iːˈsɪdɪəm]

n pl -cia [-sɪə], -cidia [-ˈsɪdɪə]

(Life Sciences & Allied Applications / Botany) a globular or cup-shaped structure in some rust fungi in which aeciospores are produced

[New Latin, from Greek aikia injury (so called because of the damage the fungi cause)]

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aecium  (s-m, sh-m)

Plural aecia (s-, sh-)

A cuplike structure of some rust fungi that contains chains of aeciospores. Aecia usually form on the bottom surface of leaves.

Thesaurus

Noun

1.

aecium - fruiting body of some rust fungi bearing chains of aeciospores rust fungus, rust - any of various fungi causing rust disease in plants fruiting body - an organ specialized for producing spores