picokatal

pi·co·kat·al (pkat),

(pī'kō-kat'ăl, pē'ko-kat'ăl),
One trillionth of a katal (10-12 katal).

pi·co·kat·al

(pkat) (pī'kō-kat'ăl)
One trillionth of a katal (10-12 katal).