diff --git a/Definitions.md b/Definitions.md
index 6435f4b..69bfbf6 100644
--- a/Definitions.md
+++ b/Definitions.md
@@ -4,12 +4,11 @@ In the [genome assembly and annotation](README.md) description, we introduce sev
 
 Term |  Definition
 --- |  ---
-Open Reading Frame (ORF) | A stretch of amino acids with no stop codon
+Open Reading Frame (ORF) | A stretch of base pairs with no stop codon
 Coding Sequence (CDS) | An ORF that could encode a protein
 Protein encoding gene (PEG) | An ORF that could encode a protein
 Hypothetical protein | Something that has not been experimentally shown
-putative protein | Something that has not been experimentally shown
+Putative protein | Something that has not been experimentally shown
 Polypeptide | A short stretch of amino acids (typically about 20 amino acids or less)
-Contig | A contiguous piece of DNA sequence that has been assembled from more than one reads. It is compiled because, as noted above, the 5' end of one sequence overlaps the 3' end of another.
+Contig | A contiguous piece of DNA sequence that has been assembled from more than one reads. It is compiled because, as noted above, the 5' end of one sequence overlaps with the 3' end of another.
 Read | The unit of DNA sequence that comes from a sequencing instrument. A single piece of DNA sequence.
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