noun Cal·a·ma·gros·tis \ˌkaləməˈgrästə̇s\

Definition of Calamagrostis

  1. :  a genus of tall mostly perennial grasses having single-flowered spikelets, the lemmas entire, and the rachillae usually extending beyond the palea into a hairy bristle or stalk — see bluejoint 1

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Origin and Etymology of calamagrostis

New Latin, from calam- + Latin agrostis couch grass, from Greek agrōstis dog's-tooth grass, perhaps from agros field — more at acre

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to criticize severely

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