In a strict sense, hydroxy derivatives of @S05663@ SinH2n+1OH.
A name commonly applied to Si-@H02891@ derivatives, R3SiOH, of silanol, H3SiOH.
Source: PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1365 [Terms] [Paper]