dorsal has definitions from the field of biology
1
[ adjective ] belonging to or on or near the back or upper surface of an animal or organ or part

Examples

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

Related terms

ventral

2
[ adjective ] (biology) facing away from the axis of an organ or organism

Synonyms

abaxial

Examples

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

Related terms

adaxial biology

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