prefix
(biology, medicine) Nonself; nonself but of the same species.
External, outside, or from a separate location.
(chemistry) Isomeric; especially, of amino acids having two chiral centres, the second diastereoisomer to be discovered or synthesized.
Different, distinct, or other with respect to the root.
Variety, heterogeneity.
(ethology) Alloparenting: parenting behaviours between animals who are not parent and child.
(LGBTQ) Not asexual; attracted to others.