lacuna magna
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la·cu·na mag·na
a recess on the roof of the fossa navicularis of the penis, formed by a fold of mucous membrane, the valve of the navicular fossa.
la·cu·na mag·na
(lă-kū'nă mag'nă)A recess on the roof of the fossa navicularis of the penis, formed by a fold of mucous membrane, the valve of the navicular fossa.
lacuna magna
The largest pitlike recess in the fossa navicularis of the distal end of the male urethra.
See also: lacuna