The phrase "a plethora of steps" is correct and usable in written English.
It can be used when describing a large number of steps or actions required to complete a task or process.
Example: "To successfully launch the product, there are a plethora of steps that the team must follow, including market research, design, and testing."
Alternatives: "an abundance of steps" or "a multitude of steps".
It's a hard-backed ode to the kitchen with tips on how to organise it, stock it, use it and clean it, with a plethora of recipes, step-by-step guides and how-tos.
High-school chemistry lessons, with their neat equations transforming, say, 2H₂ + O₂ into 2H₂O, miss out a plethora of intermediate steps such as (in this case) the formation of hydroxyl, OH.
Besides the primary upstream mechanisms, MPP+ toxicity has also been linked to a plethora of downstream steps, comprising protease activation, protein translocations and phosphorylation events.
Since the coalition launched airstrikes on March 25, a plethora of different groups have stepped into the fray: loyalists of former president Ali Abdulleh Saleh supporting the Houthis and southern separatists and other local militia fighting against them.
There are multiple, interrelated steps where a plethora of different parties are involved, including researchers, clinicians, healthcare providers, funding and regulatory agencies, legislative, educative, and health insurance bodies, industry and patient groups.
In 2013, New Zealand, a country blighted by a bad drug distribution network because of its remote location, and therefore packed with a plethora of nasty legal highs, took a step into no man's land with its progressive Psychoactive Substances Act.
Merging paired-end reads is the first processing step in a plethora of sequence analysis pipelines.
Furthermore, the visualization of the nucleus, one of the most distinctive organelles within a cell, is a key step within a plethora of experimental cell biology methods.
Both biosyntheses have a high energy demand, especially in the case of aggrecan, and involve a plethora of different enzymes in the glycosylation step.
