HELIOMETERS
16
Scrabble
17
WWF
H(4) E(1) L(1) I(1) O(1) M(3) E(1) T(1) E(1) R(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- An astronomical instrument, based on a telescope, for measuring the diameter of the sun; now used to measure the angular distance between stars and other celestial bodies.
Source: Wiktionary