presequence
verbEtymology From pre- + sequence.
1
To sequence in advance of another operation
presequence
nounEtymology From pre- + sequence.
1
Human sciences, Linguistics, Sciences The opening part of a conversation.
2
Biochemistry, Biology, Chemistry, Microbiology, Natural sciences, Physical sciences A sequence of amino acids in a preprotein; the sequence of amino acids at the N-terminal end of a protein