lunule

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lu·nule

 (lo͞on′yo͞ol)
n.
A small crescent-shaped structure or marking, such as a depression near the hinge of a bivalve shell.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lunule - the crescent-shaped area at the base of the human fingernaillunule - the crescent-shaped area at the base of the human fingernail
region, area - a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region"
nail - horny plate covering and protecting part of the dorsal surface of the digits
Translations
References in periodicals archive ?
Mesoscutum unevenly and densely punctured, notauli with more dense rugose-punctures and meeting posteriorly to form a slightly sunken rugose area; median suture indistinct; scutellar sulcus wide, deep, divided by 5 carinae; scutellum weakly rugose punctured, posteriorly band rugose-punctate medially, lunules narrow and small.
Archaeid with pair of sclerotized lunules round anterior side of spinnerets, rather than completely encircling spinnerets; male pedipalp with large, thick spine arising from cymbium.