U+1F18E Negative Squared Ab
U+1F18E was added in Unicode version 6.0 in 2010. It belongs to the block Enclosed Alphanumeric Supplement in the Supplementary Multilingual Plane.
This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as blood type AB.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. If its East Asian Width is βnarrowβ, U+1F18E forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts.
The CLDR project calls this character βAB button (blood type)β for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: AB, blood, button, type.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: ποΈ See the Emojipedia for more details on this characterβs emoji properties.
The Wikipedia has the following information about this codepoint:
The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes (red blood cells). For human blood transfusions, it is the most important of the 44 different blood type (or group) classification systems currently recognized by the International Society of Blood Transfusions (ISBT) as of December 2022. A mismatch in this serotype (or in various others) can cause a potentially fatal adverse reaction after a transfusion, or an unwanted immune response to an organ transplant. Such mismatches are rare in modern medicine. The associated anti-A and anti-B antibodies are usually IgM antibodies, produced in the first years of life by sensitization to environmental substances such as food, bacteria, and viruses.
The ABO blood types were discovered by Karl Landsteiner in 1901; he received the Nobel Prize in Physiology or Medicine in 1930 for this discovery. ABO blood types are also present in other primates such as apes, monkeys and Old World monkeys.
Representations
| System | Representation |
|---|---|
| NΒΊ | 127374 |
| UTF-8 | F0 9F 86 8E |
| UTF-16 | D8 3C DD 8E |
| UTF-32 | 00 01 F1 8E |
| URL-Quoted | %F0%9F%86%8E |
| HTML hex reference | 🆎 |
| Wrong windows-1252 Mojibake | Γ°ΕΈβ Ε½ |
| alias | blood type AB |
| Encoding: GB18030 (hex bytes) | 94 39 8A 38 |
Elsewhere
Complete Record
| Property | Value |
|---|---|
| 6.0 (2010) | |
| NEGATIVE SQUARED AB | |
| β | |
| Enclosed Alphanumeric Supplement | |
| Other Symbol | |
| Common | |
| Left To Right | |
| Not Reordered | |
| none | |
| Negative Squared Ab | |
| β | |
| Negative Squared Ab | |
| Negative Squared Ab | |
| β | |
| Negative Squared Ab | |
| Negative Squared Ab | |
| Negative Squared Ab | |
| Negative Squared Ab | |
| Negative Squared Ab | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| Negative Squared Ab | |
| Any | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| 0 | |
| 0 | |
| 0 | |
| β | |
| None | |
| β | |
| NA | |
| Other | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| Yes | |
| Yes | |
| Negative Squared Ab | |
| Yes | |
| Negative Squared Ab | |
| Yes | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| Other | |
| β | |
| β | |
| β | |
| β | |
| β | |
| Other | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| β | |
| Negative Squared Ab | |
| None | |
| wide | |
| Not Applicable | |
| β | |
| No_Joining_Group | |
| Non Joining | |
| Ambiguous (Alphabetic or Ideographic) | |
| none | |
| not a number | |
| Negative Squared Ab | |
| U |