陰核 is read as へのこ (henoko) and means penis.
へのこ
henoko
いんかくきとう
clitoral glans
いんかくほうひ
clitoral hood
いんかくかいめんたい
corpus cavernosum clitoridis
いんよう
cosmic dual forces
いんき
spirit of yin
いんせい
negative (result)
かげぐち
malicious gossip
かげ
gloom (in someone's expression, nature, etc.)
いんぼう
conspiracy
かげり
shadow (e.g. on someone's happiness)
いんえい
nuance
いんしつ
shady and damp