PTILOPAEDIC
Ptil`o*pæd"ic, a. (Zoöl.)
Defn: Having nearly the whole surface of the skin covered with down; dasypædic; — said of the young of certain birds.
PTILOPTERI
Pti*lop"te*ri, n. pl. Etym: [NL., fr. Gr. (Zoöl.)
Defn: An order of birds including only the penguins.
PTILOSIS
Pti*lo"sis, n. Etym: [NL., fr. Gr (Zoöl.)
Defn: Same as Pterylosis.
PTISAN Ptis"an, n. Etym: [L. ptisana peeled barley, barley water, Gr. ptisane, tisane.]
1. A decoction of barley with other ingredients; a farinaceous drink.
2. (Med.)
Defn: An aqueous medicine, containing little, if any, medicinal agent; a tea or tisane.