lac·ri·mal or lach·ry·mal 
(lăkrə-məl)
(lăkrə-məl)adj.
1. Of or relating to tears.
2. Of, relating to, or constituting the glands that produce tears.
[Middle English lacrimale, from Old French lacrymal, from Medieval Latin lachrymālis, from Latin lacrima, lachryma, tear; see dakru- in the Appendix of Indo-European roots.]