Definition of pollex in English:

pollex

nounPlural pollices ˈpɒlɛksˈpɑlˌɛks

Anatomy Zoology

The innermost digit of a forelimb, especially the thumb in primates.
〔剖，动〕指节；（尤指灵长动物的）拇指
Example sentencesExamples
- Four clawed digits are found on each forefoot (the pollex or ‘thumb’ is small and bears a nail); the hind foot in most has five clawed digits (but sometimes the hallux or first toe has a nail).
- The eyes are usually very small, the feet are plantigrade and have five digits, and neither the hallux or pollex is opposable.
- All eusauropods, in contrast, are characterized by a shortened manus in which each digit bears two or fewer phalanges, and only the pollex bears an ungual.
- The first dorsal has been found divided into two, one part going to the pollex and one to the index; this is a very rare anomaly, not occurring more often than once in 120 subjects.
- The forefeet and hindfeet have 3 large digits; the pollex and hallux are reduced in size or absent and the fifth finger is very small.

Origin

Mid 19th century: from Latin, literally 'thumb or big toe'.

Definition of pollex in US English:

pollex

nounˈpɑlˌɛksˈpälˌeks

Anatomy Zoology

The innermost digit of a forelimb, especially the thumb in primates.
〔剖，动〕指节；（尤指灵长动物的）拇指
Example sentencesExamples
- Four clawed digits are found on each forefoot (the pollex or ‘thumb’ is small and bears a nail); the hind foot in most has five clawed digits (but sometimes the hallux or first toe has a nail).
- The forefeet and hindfeet have 3 large digits; the pollex and hallux are reduced in size or absent and the fifth finger is very small.
- The eyes are usually very small, the feet are plantigrade and have five digits, and neither the hallux or pollex is opposable.
- The first dorsal has been found divided into two, one part going to the pollex and one to the index; this is a very rare anomaly, not occurring more often than once in 120 subjects.
- All eusauropods, in contrast, are characterized by a shortened manus in which each digit bears two or fewer phalanges, and only the pollex bears an ungual.

Origin

Mid 19th century: from Latin, literally ‘thumb or big toe’.

单词	pollex
释义	Definition of pollex in English: pollex nounPlural pollices ˈpɒlɛksˈpɑlˌɛks Anatomy Zoology The innermost digit of a forelimb, especially the thumb in primates. 〔剖，动〕指节；（尤指灵长动物的）拇指 Example sentencesExamples Four clawed digits are found on each forefoot (the pollex or ‘thumb’ is small and bears a nail); the hind foot in most has five clawed digits (but sometimes the hallux or first toe has a nail). The eyes are usually very small, the feet are plantigrade and have five digits, and neither the hallux or pollex is opposable. All eusauropods, in contrast, are characterized by a shortened manus in which each digit bears two or fewer phalanges, and only the pollex bears an ungual. The first dorsal has been found divided into two, one part going to the pollex and one to the index; this is a very rare anomaly, not occurring more often than once in 120 subjects. The forefeet and hindfeet have 3 large digits; the pollex and hallux are reduced in size or absent and the fifth finger is very small. Origin Mid 19th century: from Latin, literally 'thumb or big toe'. Definition of pollex in US English: pollex nounˈpɑlˌɛksˈpälˌeks Anatomy Zoology The innermost digit of a forelimb, especially the thumb in primates. 〔剖，动〕指节；（尤指灵长动物的）拇指 Example sentencesExamples Four clawed digits are found on each forefoot (the pollex or ‘thumb’ is small and bears a nail); the hind foot in most has five clawed digits (but sometimes the hallux or first toe has a nail). The forefeet and hindfeet have 3 large digits; the pollex and hallux are reduced in size or absent and the fifth finger is very small. The eyes are usually very small, the feet are plantigrade and have five digits, and neither the hallux or pollex is opposable. The first dorsal has been found divided into two, one part going to the pollex and one to the index; this is a very rare anomaly, not occurring more often than once in 120 subjects. All eusauropods, in contrast, are characterized by a shortened manus in which each digit bears two or fewer phalanges, and only the pollex bears an ungual. Origin Mid 19th century: from Latin, literally ‘thumb or big toe’.
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