'A cone-shaped laboratory flask with a narrow neck & a broad, flat bottom'
an Erlenmeyer flask
SCIENCE  & NATURE: A cone-shaped laboratory flask with a narrow neck & a broad, flat bottom
A cone-shaped laboratory flask with a narrow neck & a broad, flat bottom
A cone-shaped laboratory flask with a narrow neck & a broad, flat bottom
SCIENC"E"  & NATUR"E"
an Erlenmeyer flask
SCIENC"E"  & NATUR"E"