Definition of defensive lineman in English:
 defensive lineman
nounPlural defensive linemen
American Football A player positioned on the defensive line.
 he's a little light and may struggle with powerful defensive linemen
 Example sentencesExamples
-  None of the their reserve defensive linemen has the look of a future starter.
 -  He has fared well the last three seasons in his matchups against the quality defensive linemen of the Southeastern Conference.
 -  His experience is in the shot put, not putting shots on defensive lineman.
 -  By all reports, the LSU defensive lineman helped himself quite a bit last week.
 -  Yesterday, Holmgren praised his defensive linemen for their efforts.