Pronunciation: [nˈʌkluːˌɔːk] (IPA) 
The word "knucklewalk" refers to the act of walking on one's knuckles. It is spelled with a "K" for the initial sound, followed by "nuck" which is pronounced with a short "u" sound as in "cup". The next syllable is "le" with a long "L" sound, and the final part is "walk" which is pronounced with a short "o" as in "hot" and a silent "L". In IPA phonetic transcription, it is spelled /ˈnʌkəlwɔːk/.
Knucklewalk is a verb that refers to a unique method of terrestrial locomotion observed primarily in certain primate species, such as gorillas and chimpanzees. This locomotion technique involves the individual's forelimbs aiding in both support and forward propulsion, while the palms of their hands and knuckles make contact with the ground.
During knucklewalking, an organism moves with its torso and hind limbs held in an upright position, parallel to the ground. The forelimbs are slightly flexed, allowing the knuckles to remain in contact with the surface, while the fingers are usually point and unflexed. This characteristic walking style is facilitated by the thick padding on the knuckles, reducing the impact forces and preventing injury. Knucklewalking allows for forward movement, enabling primates to navigate their habitats, forage for food, and even engage in confrontations with predators or competitors if necessary.
While more typical for some primate species, knucklewalking is not exclusively limited to them. In some cases, humans with physical disabilities or injuries may adopt a form of knucklewalking as an alternative locomotion method. However, it is worth noting that this usage is less prevalent and somewhat distinct from the original primate knucklewalk.
The term "knucklewalk" is derived from the combination of "knuckle," referring to the joint between the finger bones and the hand, and "walk," indicating the act of moving by foot.
The word "knucklewalk" does not have a specific etymology. However, it can be understood in relation to the term "knuckle-walking", which is a type of quadrupedal locomotion where animals support themselves on their knuckles while moving. The term "knuckle-walking" is most commonly associated with great apes, such as gorillas and chimpanzees, who use this method of walking.
