Pollex vs. Pollux — What's the Difference?

The innermost digit of a forelimb, especially the thumb in primates.

One of the Dioscuri.

See thumb.

A binary star in the constellation Gemini, approximately 33 light years from Earth and of roughly equal brightness with Castor.

The thumb; the first, or preaxial, digit of the forelimb, corresponding to the hallux in the hind limb. In birds, the pollex is the joint which bears the alula or bastard wing.

(mineral) A variety of petalite always found with castor.

The first, or preaxial, digit of the fore limb, corresponding to the hallux in the hind limb; the thumb. In birds, the pollex is the joint which bears the bastard wing.

A fixed star of the second magnitude, in the constellation Gemini. Cf. 3d Castor.

The thick short innermost digit of the forelimb

Same as Pollucite.

The brightest star in Gemini; close to Castor