oo- /ō-ə- or ō-o-/

Denoting egg

oocyst /ōˈə-sist/ noun

(Gr kystis a bladder) in parasitic protozoa, a cyst surrounding a fertilized gamete

oocyte /ōˈə-sīt/ noun

(see -cyte) an ovum before it matures and begins to divide

oogˈamous adjective

oogˈamously adverb

oogamy /ō-ogˈə-mi/ noun

(see -gamy under -gam-) union of unlike gametes

oogenesis /ō-ə-jenˈi-sis/ noun

(see genesis) the genesis and development of the ovum (also oogeny /ō-ojˈi-ni/)

oogenetˈic adjective

oogoˈnial adjective

oogonium /ō-ə-gōˈni-əm/ noun (pl oogoˈnia)

1. (Gr gonos offspring) the female reproductive organ in seaweeds and fungi
2. An immature female gamete that gives rise to oocytes

oolite /ōˈə-līt/ noun (Gr lithos a stone; geology)

1. A kind of limestone composed of grains like the eggs or roe of a fish
2. (with cap) stratigraphically the upper part of the Jurassic in Britain, consisting largely of oolites

oolith /ōˈə-lith/ noun (Gr lithos a stone; geology)

Any of the tiny spherical grains of which oolite is composed

oolitic /ō-ə-litˈik/ adjective

oologˈical adjective

oolˈogist noun

• walkabouts
• walk all over
• walk-around
• walkathon
• walkathons
• walk a tightrope
• walk-away
• walk away from
• walk-aways
• walk away with
• walk awry
• walked
• walker
• walker-on
• walkers
• walkers-on
• walkie-talkie
• walkie-talkies
• walk-in
• walking
• walking bass
• walking-beam
• walking-beams
• walking bus
• walking buses