A small frond or a small leaf-like structure, often used in botanical descriptions of developing or miniature leafy appendages.
From 'frond' plus the diminutive suffix '-let' (making something small). Following the pattern of English diminutives like 'booklet' and 'droplet'.
Fern gametophytes produce tiny frondlets before they even develop their recognizable fronds—it's like plants have a secret teenage phase!
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