Tailshield

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The pygidium.

    "Trilobites have a distinct headshield or cephalon and a distinct tailshield or pygidium, and in both these regions the original segmentation has been suppressed — more completely in the cephalon than in the pygidium — and [...]"

Example

More examples

"Trilobites have a distinct headshield or cephalon and a distinct tailshield or pygidium, and in both these regions the original segmentation has been suppressed — more completely in the cephalon than in the pygidium — and [...]"

Etymology

From tail + shield.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.