nasal pits

na·sal pits

the paired depressions formed when the nasal placodes come to lie below the general external contour of the developing face as a result of the rapid growth of the adjacent nasal elevations; the pits are the primordia of the rostral portions of the nasal chambers.
Synonym(s): olfactory pits
Farlex Partner Medical Dictionary © Farlex 2012

na·sal pits

(nā'zăl pits)
The paired depressions formed when the nasal placodes come to lie below the general external contour of the developing face as a result of the rapid growth of the adjacent nasal elevations; the pits are the primordia of the rostral portions of the nasal chambers.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

na·sal pits

(nā'zăl pits)
Paired depressions formed when nasal placodes come to lie below general external contour of developing face as a result of the rapid growth of the adjacent nasal elevations.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
They subsequently invaginate centrally to become the nasal pits by the fifth week.