lōrīcŭla — Lewis & Short
lōrīcŭla, ae, f.dim.id.,
I a small breastplate; hence, transf., a small breastwork:
quorum frontes viminea loricula munirentur,Hirt. B. G. 8, 9, 3:
loricula urbem esse circumdatam,Veg. Mil. 4, 28.