第22个希腊字母：其读音按美国注音为chi(国际音标为［kai］，故从C- euphoriant
- euphoric
- phrenoptosis
- phrenosin
- phrenospasm
- phrenosplenic
- phrenosterol
- phrenotropic
- phrictopathic
- phronema
- phrynin
- phrynoderma
- phrynolysin
- phthalate
- phthalein
- phthaleinometer
- phthalic acid
- phthalin
- phthalylsulfacetamide
- phthalylsulfathiazole
- phthalylsulfonazole
- phthiocol
- phthiriasis
- Phthirus
- phthisis