Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: 1  Rock. rok, n. a large mass of stone: (geol.) a natural deposit of sand, earth, or clay: that which has the firmness of a rock, foundation, support, defence: (Scot.) a distaff: a hard sweetmeat.âv.t. to throw stones at.âns.
Since B-vitamins can be somewhat activating, it is best to take a multivitamin in the morning or afternoon. Minerals such as calcium and magnesium that serve as natural muscle relaxants can be taken in the evening to ensure a good nightâs sleep.
The best way to get vitamin D is naturally from the sun. However, if you live above the 37 th parallel (37 degrees latitude), or anywhere north of Los Angeles, then you really canât get much vitamin D from November to March when the sun is very low in the sky (all of Utah is above the 37 th parallel).he best way to get vitamin D is naturally from the sun. However, if you live above the 37 th parallel (37 degrees latitude), or anywhere north of Los Angeles, then you really canât get much vitamin D from November to March when the sun is very low in the sky (all of Utah is above the 37 th parallel).