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Sleep Disorders Glossary L - O

As you learn about sleep disorders, you'll probably encounter words that you've never heard of before. This glossary can serve as a resource to explain many of these words. Expanding your sleep vocabulary will help you to ask better questions of your doctor and research the topics on your own.

Definition of Penile Tumescence

Learn the definition of penile tumescence.

Definition of Neurotransmitter

Learn the definition of neurotransmitter.

Definition of Microsleep

Learn the definition of microsleep.

Definition of Melatonin

Learn the definition of melatonin.

Definition of Lark

Learn the definition of lark.

Definition of Macroglossia

Learn the definition of macroglossia.

Definition of Myoclonus

Learn the definition of myoclonus.

Narcolepsy

What is the definition of narcolepsy?

Definition of Night Terror

Learn the definition of night terror.

Definition of Nightmare

Learn the definition of nightmare.

Definition of Nocturnal

Learn the definition of nocturnal.

Definition of NREM Sleep

Learn the definition of NREM sleep.

Definition of Owl

Learn the definition of owl.
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