Uredospore

Part of speech: noun

Definitions

1. A type of spore formed by certain fungi, specifically within the context of their life cycle, that is usually involved in reproduction
2. A reproductive structure produced by particular fungi, which plays a key role in their lifecycle and helps in propagation
3. An asexual spore developed in some fungal species that aids in the reproduction and environmental dispersal of the organism

Etymology: "Uredospore" is a compound built from two parts: "uredo," the name of a genus of rust fungi, and "spore," a reproductive cell. The first element is itself Latin, from "uredo," a word meaning "blight" or "burning," which had been used for plant diseases that scorch and discolour crops. Rust fungi were named for the orange-brown dust they shed onto leaves, and the generic name took that Latin label. The second element, "spore," comes from Greek "spora," meaning "seed" or "sowing," and entered scientific English as a term for the reproductive units of plants and fungi. Put together, the compound describes a spore produced in the repeating, summer-generation stage of a rust's life cycle, which is why mycologists needed a precise term to distinguish it from the spores made at other stages.