Synonyms of the word 
BIFOCAL → CENTRAL
bifocal
- adj. (optics) Having two focal lengths.
- adj. (of a correcting lens) Divided into two parts, one of which corrects for distance vision and the other…
central
- adj. Being in the centre.
- adj. Being the most important.
- adj. Having or containing the centre of something.
- adj. Being very important, or key to something.
- adj. (anatomy) Exerting its action towards the peripheral organs.
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