plural of orphan disease

Any disease for which drugs are not usually developed because it is too rare to make the development profitable.

(physiology) A receptor that has a similar structure to other identified receptors but whose endogenous ligand has not yet been identified

plural of orphan drug

(astronomy) a star that is not part of any galaxy, but exists in intergalactic space instead

plural of orphan star

plural of orphan receptor

plural of orphan asylum

plural of orphan medicine

(historical) One of the trains, operating between 1854 and 1929, that transported orphaned and homeless children from crowded Eastern cities of the United States to foster homes located largely in rural areas of the Midwest.