per·i·the·ci·um 
(pĕr′ə-thēshē-əm, -sē-əm)
(pĕr′ə-thēshē-əm, -sē-əm)n. pl. per·i·the·ci·a (-shē-ə, -sē-ə)
A small flask-shaped fruiting body in certain ascomycetous fungi that contains the ascospores.
[New Latin : PERI- + Greek thēkion, diminutive of thēkē, case; see dhē- in the Appendix of Indo-European roots.]
per′i·theci·al (-shē-əl, -sē-əl) adj.
- falloff
- fall on
- fall on deaf ears
- fall on (or upon)
- fallopian tube
- Fallot's tetralogy
- fall out
- fallout
- fall over
- fall over backward
- fall over backward/backwards
- fall over backwards
- fall over (oneself)
- fall over oneself
- fallow
- fallow deer
- fallowness
- fall prey to
- Fall River
- Falls
- fall short
- fall through
- fall through the cracks
- fall to
- fall to pieces