VOCAB eo,lith/litho,echo

ia

condition

echoic

formed in imitation of some natural sound

paleo

ancient, old

cene

new, recent

eolith

a very early and crude stone tool

cardio

heart

echo

sound

gram

write, written

lal

talk, babble

locat

place

echolocation

a means of locating an object using an emitted sound and the reflection back from it

echocardiogram

A noninvasive technique that uses ultrasound to record the functioning of the heart

echolalia

involuntary parrot like repetition of a word or phrase just spoken by another; echoing

anechoic

free from echoes and reverberations

anthrop

mankind, man

eo

dawn, early

lith/litho

stone

sphere

ball

us

thing which

lithosphere

the outer part of the solid earth composed of rock

Paleolithic

realted to the early stone age

Eoanthropus

a genus of early man (comprising only the Piltdown man); dawn man

lithography

The process or method of printing from a metal or stone surface

Eocene

Relating to the second epoch of the Tertiary period