> as lemmas

1857 W. S. Jevons in Philos. Mag. 14 34 Cumulostratus (sometimes called, I think, the anvil-shaped cloud) is a cumulus extending at top into a stratous projection.]

1873 S. Barber in Pop. Sci. Rev. 11 359 I distinguish four main varieties of cumulus, from which I select two forms, the most striking and the most valuable as weather prognostics, to illustrate the use of observing outlines. The first is the Electric Cumulus, and the second the Anvil Cloud of Sir J. Herschell [sic].

1896 Internat. Cloud-Atlas (Internat. Meteorol. Committee) 15 Heavy masses of clouds rising in the form of mountains, turrets.., or anvils.

1920 G. A. Clarke Clouds iii. 39 The edges of this ‘anvil’ are frayed out into the fibrous form associated with the cirrus clouds.

1942 R.A.F. Jrnl. 27 June 8/1 On the starboard hand, 10/10th cloud (from which the flattened tips of anvil clouds protruded, glistening in the moonlight like an alpine range).

1998 Sports in Sky May 22/2 The anvil was now extended up to the stratosphere and menacing tendrils of cloud kept reaching out forward like the tentacles of an octopus.

2003 Math Horizons 11 6/3 The model is showing an evolving supercell thunderstorm, including the..anvil cloud extending to the northeast.