The `nanoform` term , recently [introduced by ECHA](https://echa.europa.eu/documents/10162/22334052/appendix_reg_nano_draft_for_peg_en.pdf) is not defined in ENM ontology and is also missing from [BioPortal](http://bioportal.bioontology.org/search?utf8=%E2%9C%93&query=nanoform)