[b][color=f7941d]Palindrome[/color][/b]
[[b]pal[/b]-in-drohm]

1. a word, line, verse, number, sentence, etc., reading the same backward as forward, as Madam, I'm Adam or Poor Dan is in a droop.

2. [i]Biochemistry[/i]. a region of DNA in which the sequence of nucleotides is identical with an inverted sequence in the complementary strand:
GAATTC is a palindrome of CTTAAG.