Dictionary

submarginal

adjective sub·mar·gin·al \ˌsəb-ˈmärj-nəl, -ˈmär-jə-nəl\

Definition of SUBMARGINAL

1
:  adjacent to a margin or a marginal part or structure <submarginal spots on an insect wing>
2
:  falling below a necessary minimum <submarginal economic conditions>

First Known Use of SUBMARGINAL

1829

submarginal

adjective sub·mar·gin·al \ˌsəb-ˈmärj-nəl, ˈsəb-, -ən-əl\   (Medical Dictionary)

Medical Definition of SUBMARGINAL

1
:  adjacent to a margin or a marginal part or structure <submarginal areas of the gingiva>
2
:  falling below a necessary minimum <submarginal diets>

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