The American HeritageĀ® Dictionary of the English Language, 4th Edition
adj. Of or relating to a condition that is present at birth, as a result of either heredity or environmental influences: a congenital heart defect; congenital syphilis.
adj. Being or having an essential characteristic as if by nature; inherent or inveterate: "the congenital American optimism that denies conflicts and imagines all stories having happy endingsā ( Robert J. Samuelson). See Synonyms at innate.
the GNU version of the Collaborative International Dictionary of English
adj. Existing at, or dating from, birth; pertaining to one from birth; born with one; connate; constitutional; natural. See connate and native.
The Century Dictionary and Cyclopedia
Produced or existing at birth; innate; native: as, congenital disease; congenital deformity.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. present at birth but not necessarily hereditary; acquired during fetal development
Word Usage
"Walsh DS, Hubbard AM, Olutoye OO, Howell LJ, Flake AW, Johnson MP, Adzick NS: Assessment of fetal lung volumes and liver herniation with magnetic resonance imaging in congenital diaphragmatic hernia."