trilobed
This is a benign inherited trait resulting in neutrophils with bilobed nuclei.
Hooded seals are named for their bilobed hood, an enlargement of the nasal cavity on the heads of males.
The creature had a bilobed head and a pair of tentacles.
These white blood cells have a nucleus that is bilobed.
The specimen is a bilobate fossil consisting of two narrow lobes. 
 SMART Vocabulary: related words and phrases  Patterns and shapes 
amorphous
arabesque
argyle
asymmetrically
asymmetry
flecked
formless
formlessly
fretted
geoglyph
scalloped
scissor
semilunaris
shapeable
shaped
wavery
wavily
weave
willow pattern
zigzag
You can also find related words, phrases, and synonyms in the topics:
 Substances & structures in the body 
 Parts of plants