radius

Meaning

1. (declension-2, masculine) a staff, rod
2. (declension-2, masculine) a staff, rod
3. (declension-2, masculine) a staff, rod
4. (declension-2, masculine) a staff, rod
5. (declension-2, masculine, poetic) a staff, rod
6. (declension-2, masculine) a staff, rod
7. (declension-2, masculine) a staff, rod
8. (declension-2, masculine) a staff, rod
9. (declension-2, masculine) a ray of light (also reflected)
10. (declension-2, masculine) a ray of light (also reflected)
11. (declension-2, masculine) the name of an elongated variety of olive
12. (declension-2, masculine) the name of a rod with which geometers make figures in dust, also known as a virga

Concepts

radius

beam

ray

barbule

etc.

Synonyms

calcar

Translations

rayon

Strahl

Speiche

radio

ışın

rayo

raio

raggio

Strahlen

barbule

raig

radius

barbula

poutre

Pronounced as (IPA)

[ˈra.di.ʊs]

Etymology

Of uncertain origin. Some connect it with rādīx and rāmus. Tucker suggests Proto-Indo-European *neredʰ- (“extend forth, rise, outward”) akin to Sanskrit वर्धते (vardhate, “rise, grow”), or from Ancient Greek ἄρδις (árdis, “sharp point”). May ultimately be from Proto-Indo-European *reh₁t- (“bar, beam, stem”).