~ 1
■ verb
1》 produce flowers; be in flower.
2》 be or become very healthy.
3》 technical coat (a lens) with a special surface layer to reduce reflection.
■ noun
1》 a flower, especially one cultivated for its beauty.
↘the state or period of ~ing: the apple trees were in ~.
2》 a youthful or healthy glow in a person's complexion.
3》 a delicate powdery surface deposit on fruits, leaves, or stems.
4》 a full, bright sound in a musical recording.
5》 a rapid growth of microscopic algae or cyanobacteria in water resulting in a coloured scum on the surface.
Origin
ME: from ON blóm 'flower, blossom', blómi 'prosperity', blómar 'flowers'.
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~ 2
■ noun a mass of iron or steel hammered or rolled into a thick bar for further working.
↘ historical an unworked mass of puddled iron.
■ verb [usu. as noun ~ing ] make (metal) into such a mass.
Origin
OE blōma , of unknown origin.