dorsal

Words with a similar base: dorsal

'dorsal'

[dorsal.a.01] as in: belonging to or on or near the back or upper surface of an animal or organ or part

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Examples:
the dorsal fin is the vertical fin on the back of a fish and certain marine mammals

'dorsal'

[abaxial.a.01] as in: facing away from the axis of an organ or organism

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Examples:
the abaxial surface of a leaf is the underside or side facing away from the stem