亀頭 (きとう, kitou) Japanese meaning: glans | KotomoraWord family
balanitis
bulbus glandis; knot (of a canid penis)
clitoral glans; glans clitoridis
balanoposthitis; inflammation of the glans and foreskin
Etymology
Composed of 亀 (turtle) and 頭 (head), likely from the resemblance of the glans to a turtle's head. The reading きとう is the on'yomi of the kanji.