A structure composed of two pits in adjacent cell walls, separated only by the pit membranes and often serving in the exchange of liquids and gases between cells.
Origin
1930s; earliest use found in Tropical Woods.
Definition of pit pair in US English:
pit pair
noun
Botany
A structure composed of two pits in adjacent cell walls, separated only by the pit membranes and often serving in the exchange of liquids and gases between cells.