17α-ethynylestradiol-3-methyl ester
17α-ethynylestriol-3-cyclopentyl ether
1/8
18
18+
180
1-800
1-800-Missing
180 cowries
180 degree domain
180o quick-turn table
180° shutter
180th
1820s
1830s
1840s
184415
1850s
186
1860s
1865
1870s
1880s
189
1890s
1,8,9-triacetoxyanthracene
1,8-Bisnaphthalene
18 carats fine
1,8-Diazabicycloundec-7-ene
18D/Perrine-Mrkos
18 electron rule
1/8 fluctuation
18 holes
18-karat gold
18-Methoxycoronaridine
18S rDNA
18S ribosomal DNA
18th
18th century
18th century Tahitian
18 Track Tape
18 Wheels of Steel : Across America game file
18XX
19
190
1900s
1900 Treaty
1902 Treaty
1908 Treaty
1908 Treaty relating to the Eastern Sector
English