acra

1. pluralplural onlyrareanatomyThe vascular areas of the body most removed from the heart.

   The principal differential diagnostic considerations in the case of nevi situated at the acra are atypical nevus and melanoma and, occasionally Spitz nevus/tumor.

   2004 August 1, Raymond L. Barnhill, Michael Piepkorn, Klaus J. Busam, Pathology of Melanocytic Nevi and Malignant Melanoma, Springer Science & Business Media, →ISBN, page 89

   1 more example

   The surface area to volume ratio requires that the surface temperature in the nearly cylinder-shaped body parts should be lower the smaller their radius is. Consequently skin temperatures drop toward the ends of the extremities. A quicker cooling of the acra compared to head or trunk also occurs.

   2014 July 29, Sandra Ückert, Cold Application in Training & Competition: The Influence of Temperature on Your Athletic Performance, Meyer & Meyer Verlag, →ISBN, page 52

alternative Akra

1. historicalA location in Jerusalem thought to have contained a fortified compound built by Antiochus Epiphanes, ruler of the Seleucid Empire, following his sack of the city in 168 BCE.
2. historicalA city quarter probably associated with the by-then destroyed fortress.

1. SingaporeabbreviationinitialismbusinessInitialism of Accounting and Corporate Regulatory Authority.