Infranatant is a term commonly used in scientific contexts, especially in the field of biology. However, there are various synonyms that can be used interchangeably for this term. Synonyms for infranatant include subnatant, lower layer, sediment, and precipitate. These terms describe the portion of a solution or mixture that settles at the bottom due to its higher density. They are often associated with the separation of substances based on gravity or centrifugation. So, whether you come across the terms infranatant, subnatant, lower layer, sediment, or precipitate, they all refer to the fraction that can be found at the bottom of a liquid, separated from the rest of the mixture.