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protonema |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Protonema \Pro`to*ne"ma\, n.; pl {Protonemata}. [NL., fr Gr ? first + ?, ?, a thread.] (Bot.) The primary growth from the spore of a moss, usually consisting of branching confervoid filaments, on any part of which stem and leaf buds may be developed.