Hypertext Webster Gateway: "Lactose"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Lactose \Lac"tose`\, n.
1. (Physiol. Chem.) Sugar of milk or milk sugar; a
crystalline sugar present in milk, and separable from the
whey by evaporation and crystallization. It has a slightly
sweet taste, is dextrorotary, and is much less soluble in
water than either cane sugar or glucose. Formerly called
{lactin}.
2. (Chem.) See {Galactose}.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Galactose \Ga*lac"tose\, n. (Chem.)
A white, crystalline sugar, {C6H12O6}, isomeric with
dextrose, obtained by the decomposition of milk sugar, and
also from certain gums. When oxidized it forms mucic acid.
Called also {lactose} (though it is not lactose proper).
From WordNet (r) 1.7 (wn)
lactose
n : a sugar comprising one glucose molecule linked to a
galactose molecule; occurs only in milk; "cow's milk
contains about 4.7% lactose" [syn: {milk sugar}]
Additional Hypertext Webster Gateway Lookup
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents;
see the Webster Gateway FAQ,
and also the Back-end/database links and credits.