| crus | any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton |
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| crus | being or having or resembling a hard crust or shell |
| crus | having a hardened crust as a covering |
| crus | having a hardened crust as a covering |
| crus | (of lichens) having a thin crusty thallus that adheres closely to the surface on which it is growing |
| crus | thin crusty lichen thallus |
| crus | brusque and surly and forbidding |
| crus | having a hardened crust as a covering |