reciprocal of absent lacks parts or has fewer parts of type lacks all parts of type OBO_REL:lacks_part lacks all physical parts of type A quality of physical entities inhering in a bearer by virtue of the bearer's lacking a physical part as specified by the additional entity. Example: [E=organism Q=lacks_all_parts_of_type E2=Wing] - applies to an organism. A relational quality in which the bearer entity has no parts of the specified type. The bearer of this quality has_part = 0 of the indicated entity type, where a comparable organism usually has at least 1 part of the same type. Note that the bearer of the quality is the whole, not the part. Formally: If a bearer entity e lacks all parts of type X at time t, then there exists no instances x of X at t such that x part_of e that has no wings, where wings are normally present in that organism type. In OWL this is equivalent to a restriction on the OBO_REL:has_part relation with cardinality=0, i.e has_part 0 E2. PATO:0002000 PATO:0001557