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one of the two male reproductive glands that produce spermatozoa and secrete androgens
a man's testicles (from Cockney rhyming slang: cobbler's awl rhymes with ball)
a testis that fails to move into the scrotum as the male fetus develops
a gland in which gametes (sex cells) are produced
male reproductive gland
the reproductive organs of a man
a pulley-block at the head of a topmast
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
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