Subcapsular is an adjective. The adjective is the word that accompanies the noun to determine or qualify it.

What does subcapsular mean?

: situated or occurring beneath or within a capsule subcapsular cataracts.

What is a Capsuler?

(Entry 1 of 3) 1a : a membrane or sac enclosing a body part (such as a knee joint or kidney) b : either of two layers of white matter in the cerebrum. 2 : a closed receptacle containing spores or seeds: such as.