adelpho-, adelph-, -adelphia, -adelphous +

(Greek: brother)

Adelphi (proper noun)
The name of a group of buildings in London between the Strand and the Thames and laid out by the four brothers, James, John, Robert, and William Adam and hence called Adelphi: Adelphi is also the name of the theater in the vicinity of these buildings in London at which a certain type of melodrama was prevalent c. 1882 -1900.
adelphic (adjective), more adelphic, most adelphic
Descriptive of a form of polyandry; pertaining to the plurality of husbands: The adelphic practice of a woman married to two or more brothers at the same time is not legal in many countries.
adelphogamy (s) (noun) (no pl)
1. A form of polyandry in which two or more brothers have or share the same wife, or wives: In the newspaper article, Nancy read about a mother who seemingly was wedded to two men who were brothers, termed adelphogamy, and had children with them as well.
2. The marriage of a brother and sister to each other: In the magazine there was an article about the son and daughter of one set of parents that lived in adelphogamy, which soon came to public attention.
3. In zoology, mating of brothers and sisters: Adelphogamy seemingly happens with certain kinds of ants.
4. In botany, fertilization between two different individuals derived vegetatively from the same parent plant: Adelphogamy takes place in some species of fungi and flowering plants.
adelpholite (s) (noun), adelpholites (pl)
A columbate of iron and manganese: Adelpholite is greasy, black and yellow and crystallises in the tetragonal system. It is closely related to tapiolite.
adelphoparasite (s) (noun), adelphoparasites (pl)
An organism which lives in or on a closely related host: The adelphopgrasite is a tiny creature that can only thrive by dwelling on another closely related living thing or host.
adelphophagy (s) (noun) (no pl)
The consumption of one embryo by another in utero: Adelphophagy occurs in certain marine gastropods and in some marine annelids.

Adelphophagy particularly relates to certain amphibians, sharks, and fish.

adelphotaxis (uh del" foh TACK sis), adelphotaxy (uh del" foh TACK see) (s) (noun); adelphotaxes; adelphotaxies (pl)
The tendency of moveable cells to assume a particular arrangement; Adelphotaxy refers to the definite grouping of cells, usually in a mutual relationship.

Adelphotaxy is the interactive attraction between spores after extrusion or pushing out.

adelphous (adjective) (not comparable)
In botany, regarding a plant possessing clustered filaments: Adelphous stamens combine the filaments into one or more bundles instead of growing singly.
amadelphous (adjective), more amadelphous, most amadelphous
1. Pertaining to a person who likes being in crowds and socializing; outgoing; gregarious: Nancy's sister loved to go out and enjoy herself with others almost every evening, and her parents described her as being an amadelphous teenager.
2. In zoology, concerning animals that live and travel in groups or herds: Amadelphous creatures are those that are of the same kind or species and move about or fly together, like certain amadelphous bird species.
3. In botany, descriptive of plants that grow close together: Amadelphous vegetation refers to flora thriving in open clusters or colonies, but not matted together or in dense bunches or clumps.
cenadelphus (s) (noun), cenadelphuses (pl)
Symmetrically conjoined twins: Cenadelphus refers to monozygotic twins (derived from a single fertilized egg zygote) ranging from two well-developed individuals joined by a superficial connection of varying extent, usually in the frontal, transverse, or sagittal body plane.

A "zygote" is a cell formed by the union of a male sex cell (sperm) and a female sex cell (ovum).

deradelphus (s) (noun), deradelphuses (pl)
Conjoined twins with a single head and neck; In the book Jane was reading, she learned about a deradelphus that was connected above the thorax with one head and neck, but had separate parts below the thoracic region.
diadelphous (adjective) (not comparable)
A description of stamens or flowers that have the stamen filaments grouped into two bundles or groups: Some members of the bean family are diadelphous, as the sweet pea.
heteradelphus (s) (noun), heteradelphuses (pl)
Conjoint twins with a single fetus: A heteradelphus refers to unequally conjoined twins in which the smaller incomplete parasite is attached to the larger, more nearly normal autosite (that member of abnormal, unequal conjoined twins that is able to live independently and nourish the other member [parasite] of the pair).
isadelphous (adjective) (not comparable)
In botany, having diadelphous stamens with the same number in each bundle: In Mary's botany book she read about isadelphous plants possessing diadelphous stamens in which each phalanges had an equal number, like in some diadelphous blooms.
matradelphy (s) (noun), matradelphies (pl)
A mother's brother who is the uncle of her children: Jim's matradelphy lived in the same town and visited his sister, who was his mom, quite often.