pygidium
/pʌɪˈdʒɪdɪəm
/ /pʌɪˈɡɪdɪəm/noun (plural pygidia /pʌɪˈdʒɪdɪə/ /pʌɪˈɡɪdɪə/) Zoology
The terminal part or hind segment of the body in certain invertebrates.The pygidium, like the cephalon, was a structure in which segments were fused together....
- A pygidium with an attached thoracic segment represents a meraspid stage of the species.
- By contrast, some representatives of the Olenelloidea have pygidia with multiple segments.
Origin
Mid 19th century: modern Latin, from Greek pugē 'rump'.
- mineral
- mineral acid
- mineral alkali
- mineral blue
- mineral coal
- mineral dresser
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- mineral fiber
- mineral fibre
- mineral gray
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- minerality
- mineralizable
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- mineralizer
- mineral jelly
- mineral lake
- minerally
- mineral map
- mineralness
- mineralocorticoid