co·le·op·tile 
(kō′lē-ŏptĭl, kŏl′ē-)
(kō′lē-ŏptĭl, kŏl′ē-)n.
A protective sheath enclosing the shoot tip and embryonic leaves of grasses.
[From New Latin coleoptilum : Greek koleon, sheath; see kel-1 in the Appendix of Indo-European roots + Greek ptilon, plume; see pet- in the Appendix of Indo-European roots.]
- microfiche
- microfilament
- microfilamentous
- microfilaria
- microfilarial
- microfilm
- microform
- microfossil
- microgamete
- microgametophyte
- microglia
- microglial
- microglossia
- microgram
- micrograph
- micrographic
- microgravity
- microgreens
- microhabitat
- microinject
- microinjection
- microinstruction
- microlending
- microlith
- microlithic