The Collaborative International Dictionary
Engrailment
Engrailment \En*grail"ment\, n.
The ring of dots round the edge of a medal, etc.
--Brande & C.(Her.) Indentation in curved lines, as of a line of division or the edge of an ordinary.
Wiktionary
engrailment
n. 1 The ring of dots around the edge of a medal, etc. 2 (context heraldry English) indentation in curved lines, as of a line of division or the edge of an ordinary.