frontal shield

noun
variants: or less commonly frontal plate

Definition of frontal shield

: a platelike prolongation of the base of the upper mandible over the forehead that is a characteristic feature of the coots and gallinules

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Cite this Entry

“Frontal shield.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frontal%20shield. Accessed 14 May. 2021.

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