pseudothumb
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
21
Scrabble Score
11
Letters
2
Syllables
10
Unique Chars
Meaning
noun
A digit on a vertebrate that resembles but is not a thumb.
Example Sentences
- "But a panda's forepaws are specially adapted for manipulating bamboo stems, with a modified elongated wrist bone forming the pseudothmb covered by a fleshy pad."
- "The extra digit is a "pseudothumb” containing a sheathed spine that can be pushed out."
- "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). This pseudothumb receives attachments from muscles that facilitate abduction, adduction, and opposition, which together facilitate dexterity."