e·lec·tro·en·ceph·a·lo·graph 
(ĭ-lĕk′trō-ĕn-sĕfə-lə-grăf′)
(ĭ-lĕk′trō-ĕn-sĕfə-lə-grăf′)n.
An instrument that measures electrical potentials on the scalp and generates a record of the electrical activity of the brain. Also called encephalograph.
e·lec′tro·en·ceph′a·lo·graphic adj.
e·lec′tro·en·ceph′a·logra·phy (-lŏgrə-fē) n.
- letter
- letter bomb
- letterbox
- letter carrier
- lettered
- letterer
- letterform
- letterhead
- lettering
- letterman
- letter of credence
- letter of credit
- letter of intent
- letter-perfect
- letterpress
- letter-quality
- letters of administration
- letters of marque
- letters patent
- letters testamentary
- let the cat out of the bag
- Lettish
- lettuce
- let up
- letup