pollen sac
Botany
noun
Each of the chambers (in angiosperms usually four in each anther) in which pollen is formed; the microsporangium of a seed plant.
Origin
Late 19th century; earliest use found in American Naturalist.
- ploughed-out
- ploughed-up
- plougher
- plough-gang
- ploughgear
- plough grinding
- plough handle
- plough-head
- plough-in
- ploughing-back
- ploughing day
- ploughing ground
- ploughing land
- ploughing match
- plough iron
- plough jack
- plough jag
- plough jagging
- plough jockey
- plough-jogger
- ploughland
- plough light
- plough-line
- ploughman
- ploughmanship