a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt | activities associated with sexual intercourse |
one of the two male reproductive glands that produce spermatozoa and secrete androgens | the properties that distinguish organisms on the basis of their reproductive roles |
someone who is so ardently devoted to something that it resembles an addiction | all of the feelings resulting from the urge to gratify sexual impulses |
a whimsically eccentric person | either of the two categories (male or female) into which most organisms are divided |
usually large hard-shelled seed | |
half the width of an em | |