Name: | pectoral fin lepidotrichium |
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Synonyms: | pectoral fin lepidotrichia, pectoral fin ray |
Definition: | Lepidotrichium which is part of the pectoral fin, forming the pectoral fin skeleton and articulating with the pectoral radials. A pectoral lepidotrichium is composed of two hemitrichia that surround bundles of actinotrichia distally. |
Ontology: | Anatomy Ontology [ZFA:0001551] |
Name: | hypoplastic |
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Synonyms: | hypoplasia, underdeveloped |
Definition: | A physical quality inhering in an organ or tissue by virtue of the bearer's exhibiting a decreased number of cells, typically associated with a decrease in size. |
Ontology: | Phenotypic Quality Ontology [PATO:0000645] |