人日: also known as nanakusa no sekku (七草の節句, ななくさのせっく: "The festival of seven herbs"); one of the five seasonal festivals, (五節句, gosekku). It is celebrated on January 7.

腎盂: renal pelvis

尿: urine / 繞: Chinese character radical that covers the left and bottom of a Chinese character

手錠: handcuffs

見た目: appearance

見物: a sight, a spectacle

連声: a morphological change of an initial syllable of the second kanji under the influence of the historical coda of the first kanji in a word

未満: being under, below

哯吐: (of an infant, etc) spitting out milk after taking a drink

二乗: squaring