Meanings

like father, like son

ill weeds grow apace

nature itself is a good mother

the doting parent's purse is plundered

be guided by your children when you are old

vortex device

there is only the thickness of the boat's planking between one and perdition

unpaired electron

molecular orbital

free electron

pi electron

electron cloud

bound electron

orbital electron

electron pair

dihybrid

torinoko paper

little child

bulbil (esp. of a Japanese yam)

Chinese sumac (Brucea javanica)