ADJ.
partial
VERB + ANNULAR
total
ANNULAR + NOUN
fiber
adj
Pertaining to, or having the form of, a ring: in the shape of an annulus.
Near-synonyms: oval; round; toroid
annular fiber
Banded or marked with circles.
adjective — shaped like a ring
If anybody snickers, put 'em in their place by reminding them that the annular wing is a very old aeronautical principle.
There are three types of a solar eclipse: total, partial, and annular.