underpart
nounEtymology From under- + part.
1
A lower or underneath part.
2
Biology, Natural sciences, Ornithology Usually Such a part of a bird.
- buffy underparts
- This bird species has tan underparts. Try to catch a glimpse when the bird takes off.
underpart
verbEtymology From under- + part.
1
To divide (a part) and assign subordinate portions of it.