正畸

正畸	zhèng jī	orthodontics
正	zhēng	first month of the lunar year
正	zhèng	straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive
畸	jī	lopsided / unbalanced / abnormal / irregular / odd fractional remnant