psy·cho·pa·thol·o·gy 
(sī′kō-pə-thŏlə-jē, -pă-)
(sī′kō-pə-thŏlə-jē, -pă-)n.
1. The study of the origin, development, and manifestations of mental or behavioral disorders.
2. The manifestation of a mental or behavioral disorder.
psy′cho·path′o·logic (-păth′ə-lŏjĭk), psy′cho·path′o·logi·cal (-ĭ-kəl) adj.
psy′cho·pa·tholo·gist n.
- attenuator
- attest
- attestant
- attestation
- attester
- attestor
- Att. Gen.
- at that
- at the dot
- at the double
- at the drop of a hat
- at the drop of a hat
- at the end of one's rope
- at the end of (one's) rope/tether
- at the end of one's tether
- at the end of rope
- at the end of tether
- at the end of the day
- at thehand
- at thehand/handsof
- at the latest
- at the mercy of
- at (the) most
- at the most
- at the ready