has part has part has_part characteristic of has modifier tear secretion excessive tearing lacrimous eye MP:0001349 excessive lachrymation an unusually high amount of fluid in the eye, either oversecreted by the lacrimal glands, or due to imperfect drainage by the tear conducting passages, often resulting in overflow of fluid from the eye onto the cheek MPheno.ontology excessive lacrimation watering eye epiphora abnormal tear production abnormal increased rate