oct-

1. Form of octa- or octo- used before a vowel.
3. (chemistry) Used for the digit eight to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.

   ‎un- (“1”) + ‎bi- (“2”) + ‎oct- (“8”) + ‎-ium (element suffix) → ‎unbioctium (“element 128”)

• octad
• octet, octette
• octuplet

• -oct-

• CTO, OTC, TCO, TOC, cot

• IPA^(key): /ɔkt/

oct-

1. (organic chemistry) oct-

• Category:nl:Hydrocarbon chain prefixes

• IPA^(key): /ɔkt/

oct-

1. (organic chemistry) oct-

• Category:de:Hydrocarbon chain prefixes