Merriam-Webster Collegiate Dictionary - gilbert

 I. biographical name Cass 1859-1934 American architect  II. biographical name Sir Humphrey circa 1539-1583 English navigator  III. biographical name Walter 1932- American biochemist  IV. biographical name William 1540-1603 English physician & physicist  V. biographical name Sir William Schwenck 1836-1911 English librettist & poet  • ~ian adjective  VI. geographical name town SW central Arizona SE of Mesa population 109,697 GILBERT  noun  Etymology: William Gilbert  Date: 1893 the centimeter-gram-second unit of magnetomotive force equivalent to 10?4? ampere-turn