phy·col·o·gy 
(fī-kŏlə-jē)
(fī-kŏlə-jē)n.
The branch of botany that deals with algae. Also called algology.
phy′co·logi·cal (fī′kə-lŏjĭ-kəl) adj.
phy·colo·gist n.
- oneness
- one-night stand
- one-note
- one-off
- one of these days
- one of those days
- one-on-one
- one-piece
- onerous
- onerously
- onerousness
- oneself
- one-shot
- one-sided
- one-sidedly
- one-sidedness
- Onesies
- one-size-fits-all
- (one's) level best
- one's level best
- (one's) lips are sealed
- one's lips are sealed
- (one's) own man
- one's own man
- (one's) own woman