"impressive specimen" is a valid phrase in written English.
You can use it when referring to something that stands out among other examples of its kind. For example, "The newly discovered bug was an impressive specimen of its species."
Nor was he an impressive specimen.
Granted, a single mosquito isn't a physically impressive specimen.
As a workaround Jayson had trudged into the fields earlier that day, burying a particularly impressive specimen in camera-friendly location.
An impressive specimen is due to go up on the forecourt of Buckingham Palace on Wednesday (3 December), while Downing Street's 20ft tree is due to be delivered in the first week of December and have its lights switched on the following week.
They passed many species they had already collected for the Millennium project — maple-leaved vibernum, steeplebush with spiky stalks of tiny pink flowers, black birch — as well as a particularly impressive specimen of that quintessential Staten Island forest dweller, Automobilius burnedouticus.
CSM: I mean, this is a really impressive specimen.
Enjoy the experience of coming nose-to-nose with some really impressive specimens in this much-loved museum.
These impressive specimens, which the Hoffmanns sell in the Union Square Greenmarket on Wednesdays, are delicious, with a mild but meaty flavor that suggests chicken.
Walter had a yen for the larger more impressive specimens, which, according to Margery, gave him "a good return for his money".
Sotheby's will be offering several impressive specimens, including a large brilliant-yellow pillow-shaped diamond, at its Dec. 11 sale.
It is a bloodbath out there, and in the presence of far surlier, impressive specimens, one needs to have one's wits about one.
