• 精せい

  spirit, sprite, nymph

• 精子せいし

  sperm, spermatozoon

• 精選せいせん

  careful selection

• 精度せいど

  precision, accuracy

• 精米せいまい

  rice polishing, polished rice

• 精液せいえき

  semen, seminal fluid, sperm

• 精巧せいこう

  elaborate, delicate, exquisite

• 精力せいりょく

  energy, vigor, vigour, vitality

• 精鋭せいえい

  elite, best, pick, cream of the crop

• 精製せいせい

  refining, purification

• 精密せいみつ

  precise, exact, detailed, accurate, minute, close

• 精々せいぜい

  at the most, at best

• 精算せいさん

  exact calculation, squaring of accounts, adjustment

• 精彩せいさい

  brilliance, luster, lustre, colorfulness, colourfulness

• 精神せいしん

  mind, spirit, soul, heart, ethos

• 精進しょうじん

  concentration, diligence, devotion

• 精通せいつう

  being well versed (in), being well acquainted (with), being familiar (with), having a thorough knowledge (of), being an authority (on)

• 丹精たんせい

  working earnestly, sincerity, diligence, effort, pains

• 無精ぶしょう

  indolence, laziness, sloth

• 射精しゃせい

  ejaculation

• 妖精ようせい

  fairy, sprite, elf

• 受精じゅせい

  fertilization, fertilisation, impregnation, pollination, insemination

• 精神科せいしんか

  psychiatry, psychiatric department

• 精神的せいしんてき

  mental, spiritual, emotional

• 精一杯せいいっぱい

  the best one can do, one's best effort

• 受精卵じゅせいらん

  fertilized egg, fertilised egg

• 精神障害せいしんしょうがい

  mental disorder, mental disability, mental illness

• 精神薄弱せいしんはくじゃく

  feeble-mindedness, intellectual disability

• 体外受精たいがいじゅせい

  in vitro fertilization, in vitro fertilisation, IVF

• 精一せいいつ

  purity

• 精巣せいそう

  testicle

• 精魂せいこん

  soul, spirit

• 精到せいとう

  meticulous

• 精強せいきょう

  powerful

• 精妙せいみょう

  exquisite

• 精粉せいふん

  fine powder

• 精包せいほう

  spermatophore

• 精原せいげん

  spermatogonial

• 精嚢せいのう

  seminal vesicle

• 精銅せいどう

  refined copper

• 精虫せいちゅう

  spermatozoon, sperm

• 精漿せいしょう

  seminal plasma

• 精索せいさく

  spermatic cord

• 精霊せいれい

  spirit, soul, ghost

• 精糖せいとう

  refined sugar, sugar refining

• 精義せいぎ

  detailed exposition

• 精飲せいいん

  drinking semen, swallowing semen

• 精解せいかい

  detailed explanation

• 精粋せいすい

  purity, unselfishness

• 精勤せいきん

  diligence, good attendance