Because grapefruit grow in bunches like grapes do.
Grapefruit juice. Obvious answer is obvious. --- I believe the person who asked this question was looking for a word that is not so obvious. The juice from a grapefruit is called CITRIC ACID
Yes, although they are called grapefruit they are entirely different from grapes.
Moosumbi / saaththukkudi (മൂസംബി, സാത്തുക്കുടി)
chakotra
lychee
Ream
The tangelo comes from the combination or hybrid of the tangerine and a grapefruit. The grapefruit is also called a pomelo.
The grapefruit is 'le pamplemousse' (masc.) in French, also sometimes called 'pomelo'.
Pampelmous
A portion of butter is called a Pat of butter
A hybrid between a grapefruit and either a tangerine or a mandarin orange is called a 'tangelo.'