Irish Sign Language STEM Glossary
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| Letter | Term | Description | Category |
|---|---|---|---|
| R | Red Cross | International humanitarian organisation. |
Geography |
| R | Recently | Recently |
Mathematics |
| R | Rock (Fingerspelling) | A naturally occurring solid mass of geological materials. |
Biology |
| R | Right Angle | An angle which is equal to 90°. |
Mathematics |
| R | Rural | Area outside towns or cities. |
Geography |
| R | Reflection | Reflection is when light bounces off an object. |
Physics |
| R | Retained Placenta | A placenta that remains in the uterus for 30 minutes or more after delivery. The practitioner will sometimes need to manually remove the placenta when this occurs. |
Pregnancy |
| R | Right | Near the side of a person or thing that is turned toward the east when the subject is facing north. |
Mathematics |
| R | Rectangle | A quadrilateral in which all the angles are equal and the opposite sides are equal and parallel. |
Mathematics |
| R | Rwanda | Country in East Africa. |
Geography |