sesamoid

comparative more sesamoid · superlative most sesamoid

1. Resembling a sesame seed in size or shape.
2. Of or relating to a sesamoid bone.

plural sesamoids

1. anatomyA sesamoid bone or sesamoid cartilage.

   There are also at least two examples of more complex ectopic digits. The first is in the aye-aye, a Madagascan lemur, which has a distinct pseudothumb on its forelimb consisting of a bony part that is an expanded radial sesamoid and a dense cartilaginous extension (Hartstone-Rose et al., 2019).

   2021, Jonathan Bard, Evolution: The Origins and Mechanisms of Diversity, page 257