[uh-ber-uh
nt, ab-er-] 
| 1. | departing from the right, normal, or usual course. |
| 2. | deviating from the ordinary, usual, or normal type; exceptional; abnormal. |
| 3. | an aberrant person, thing, group, etc. |
| ab·er·rant (āb'ər-ənt, ā-běr'-) adj.
[Latin aberrāns, aberrant-, present participle of aberrāre, to go astray; see aberration.] ab'er·rance, ab'er·ran·cy n., ab'er·rant·ly adv. Usage Note: Traditionally aberrant has been pronounced with stress on the second syllable. In recent years, however, a pronunciation with stress on the first syllable has become equally common and may eventually supplant the older pronunciation. This change is owing perhaps to the influence of the words aberration and aberrated, which are stressed on the first syllable. The Usage Panel was divided almost evenly on the subject: 45 percent preferred the older pronunciation and 50 percent preferred the newer one. The remaining 5 percent of the Panelists said they use both pronunciations. |
| Main Entry: | aberrant1 |
| Part of Speech: | adj |
| Definition: | differing from the normal or accepted way, esp. in behavior |
| Etymology: | Latin ab- + errare 'to wander' |
| Main Entry: | aberrant1 |
| Part of Speech: | n |
| Definition: | any person, group, or thing that differs substantially from the usual or standard |
| Etymology: | Latin ab- + errare 'to wander' |
| Main Entry: | aberrant2 |
| Part of Speech: | adj |
| Definition: | differing substantially from the usual or natural type; atypical |
| Etymology: | Latin ab- + errare 'to wander' |
| Main Entry: | aberrant2 |
| Part of Speech: | n |
| Definition: | an aberrant person, group, or thing |
| Etymology: | Latin ab- + errare 'to wander' |
| Main Entry: | aberrant3 |
| Part of Speech: | adj |
| Definition: | wandering or deviating from the normal course |
| Etymology: | Latin ab- + errare 'to wander' |
| Usage: | medicine |
| Main Entry: | aberrant4 |
| Part of Speech: | adj |
| Definition: | out of place; ectopic |
| Etymology: | Latin ab- + errare 'to wander' |
| Usage: | medicine |
aberrant ab·er·rant (ā-běr'ənt, āb'ər-)
adj.
Deviating from the usual course, as certain ducts, vessels, or nerves.
Deviating from the normal; untrue to type.
Out of place; ectopic.