Sentence examples for holdfast from inspiring English sources
noun
Something to or by which an object can be securely fastened.
Both plants and animals have evolved mechanisms that help to anchor them to the substratum in flowing water (e.g., the holdfast of kelp or the byssus threads of mussels).
Attachment is achieved by flattening a sticky holdfast, which pulls the larva down on top of it.
They may lose the main body at the end of the growing season, but the attachment part, the holdfast, produces new growth only at the beginning of the next growing season.
There live a variety of ostariophysans (Balitoridae, Sisoridae, Akysidae, Loricariidae, Astroblepidae), which exhibit fascinating structural adaptations, such as holdfast organs and specialized respiratory mechanisms.
The specialized cell for attachment is called the holdfast.
In some Pasteuria strains, the daughter buds have a flagellum and are motile, whereas the mother cells lack flagella but have long pili and holdfast appendages at the end opposite the bud.
The simplest procedure was to use wooden pegs set into holes in the bench top; the other was to use what are variously known as bench stops, holdfasts, or dogs.
The petioles (leaf stalks) serve as cover for fish and holdfasts for their spawn, and hoofed wildlife also browse on the plant parts.
A variety of modifications have evolved that function as holdfasts, anchoring the fish to rocks or similar objects.
Seaweeds are generally anchored to the sea bottom or other solid structures by rootlike "holdfasts," which perform the sole function of attachment and do not extract nutrients as do the roots of higher plants.
The cells of some aquatic species are attached to surfaces by long strands or stalks (holdfasts).
