The process in which a cell becomes capable of differentiating autonomously into an abaxial cell in an environment that is neutral with respect to the developmental pathway; upon specification, the cell fate can be reversed.
anther wall tapetum cell fate specification
bundle sheath cell fate specification
cardiac cell fate specification +
cell fate specification involved in pattern specification +
compound eye cone cell fate specification +
ectodermal cell fate specification +
endodermal cell fate specification +
endothelial cell fate specification +
eosinophil fate specification
epidermal cell fate specification +
epithelial cell type specification, open tracheal system +