noun. In ichthyology:

noun. A bone lateral to the ethmoid in fishes, the prefrontal: not homologous with the bone called ‘lacrvmal’ by Parker.

noun. A bone in front of the eye in fishes, part of the suborbital ring; the preorbital: not homologous with the bone called ‘lacrymal’ by Geoffroy.

In anatomy and physiology, of or pertaining to tears; secreting tears; conveying tears: as, the lacrymal apparatus.

noun. One of the bones of the face in vertebrates; in man, the os unguis, or nail-bone, so called from its resemblance in size and shape to a human finger-nail.

noun. Same as lacrymatory.

noun. plural Tears; a fit of weeping.

See lachrymatory, n., and lachrymal, a.

adjective. Alternative spelling of lachrymal.

"That the internal membrane of the nostrils may be kept always moist, for the better perception of odours, there are two canals, that conduct the tears after they have done their office in moistening and cleaning the ball of the eye into a sack, which is called the lacrymal sack; and from which there is a duct, that opens into the nostrils: the aperture of this duct is formed of exquisite sensibility, and when it is stimulated by odorous particles, or by the dryness or coldness of the air, the sack contracts itself, and pours more of its contained moisture on the organ of smell."

lacrymal bay  lacrymal bone  lacrymal canal  lacrymal duct  lacrymal fossa  

air-supply  asafetida  body-length  cleaned-up  cribriform  

lachrymal  lachrymatory