The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
any functional anomaly in the giant cell 50 to 100 micron in diameter, with a greatly lobulated nucleus, found in the bone marrow; mature blood platelets are released from its cytoplasm