allo-, all-

(Greek: different, other, another; divergence; a combining form denoting a condition differing from the normal or a reversal, or referring to "another")

1. In ecology, denoting a species which as the result of a change in the environment displaces another species.
2. Denoting an ethnic group which has become established in a territory relatively recently and still retains ethnic and racial characteristics distinguishing it from the autochtheneous or indigenous population.
1. A reference to factors acting from outside the system, or of material transported into an area from outside.
2. Having different sets of genes or differing in genotype.
allogenic transformation
Reciprocal transformation of two mutants to the wild type by the action of a transforming principle obtained from the other one.
Floras persisting from an earlier environment.
1. Someone who makes representations of abstract ideas or principles with characters, figures, or events in narrative, dramatic, or pictorial form.
2. Anyone who uses stories, pictures, or who employs such representations: "John Bunyan's Pilgrim's Progress and Herman Melville's Moby Dick are considered to be allegories.
3. A symbolic representation: "The blindfolded figure holding scales is an allegory of justice."
allogotrophia (s) (noun), allogotrophias (pl)
Growth or nourishment of one part or tissue at the expense of another part of the body; as in certain neoplasms.
1. Transplant tissue obtained from another of the same species.
2. A graft from a donor of one species to a recipient of the same species, where the two individuals are not genetically identical.
3. A tissue graft taken from a genetically nonidentical donor of the same species as the recipient.
1. Something, especially a signature, written by one person on another’s behalf.
2. A letter or combination of letters that is one of a set that can be used to represent the same speech sound (phoneme); such as, “s”, “ss”, and “c” in English.
A descriptive reference to something, especially a signature, written by one person on another’s behalf.
Writing another individual's signature.

An allograph can simply be the opposite of an autograph; that is, it is a person's words or name (signature) written down by another person.

allogrooming (s) (noun), allogroomings (pl)
1. A behavior pattern in which an animal grooms the fur or skin of another animal of the same species.
2. In animal behavior, the grooming of one individual by another one.

This may involve the grooming of offspring by a parent or of one gender by another one.

allogyric birefringence
A phenomenon wherein passing plane polarized light through an optical substance produces two equal beams of circularly polarized light; one right-handed and the other left-handed, each having different velocities.
Being immune to allogeneic antigens.
Alternation of generations; an alternation between sexual and asexual phases in a life cycle.
A corneal transplant composed of a different substance than corneal tissue; such as, a synthetic plastic.

Inter-related cross references, directly or indirectly, involving word units meaning "another, other, different, alternating, varied, changing": ali-; alter-; allelo-; hetero-; mut-; poikilo-; reciproc-; vari-.