Variant or potentially erroneous form related to outward sprouting or budding processes.
Likely a variant or corrupted form of 'ecblastesis' with similar Greek roots (ek- + blastos), though this exact spelling is rare in standard dictionaries and may represent a transcription error.
This might be a spelling variant that got lost in historical medical texts—it shows how technical scientific terms sometimes had multiple spellings before standardization in the 19th century.
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